Glass ceramic, glass ceramic product and manufacturing method thereof

Abstract

The present invention provides a glass ceramic and a glass ceramic product having excellent mechanical properties. The microcrystalline glass product comprises the following components in percentage by weight: 40-55% of SiO2; 15 to 30 percent of Al2O3; 0.1 to 6 percent of Li2O; 9% to 19% of ZnO; 0.1 to 6 percent of MgO; and 0.5 to 7 percent of TiO2. Through reasonable component design, the obtained microcrystalline glass product has excellent mechanical properties and is suitable for display equipment or electronic equipment.

Description

[0001] This application is a divisional application of the invention patent application with the application number 202310470769.9, the application date of April 27, 2023, and the title of "Glass-ceramics, glass-ceramic products and manufacturing methods thereof". Technical Field

[0002] The present invention relates to a glass-ceramics, in particular to a glass-ceramics and glass-ceramic products with excellent mechanical properties, which are applicable to display devices or electronic devices. Background Art

[0003] In recent years, glass-ceramics have been commonly used in various displays and display devices of many electronic products, such as mobile phones, music players, e-book readers, notepads, tablets, laptop computers, ATMs and other similar devices. The materials used to form the housings of display devices and electronic devices are usually selected to meet the mechanical requirements related to the end uses of the electronic devices. On the other hand, higher requirements are put forward for the optical properties of the glass-ceramics used in electronic devices or display devices. Optical properties refer to the properties exhibited by substances when absorbing, reflecting and refracting light, such as haze, |B| value, etc. However, the glass-ceramics on the market at present have problems such as high haze, and it is difficult to be applied to display devices or electronic devices with high optical property requirements. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a glass-ceramics and glass-ceramic products with excellent mechanical properties.

[0005] The technical solution adopted by the present invention to solve the technical problem is as follows:

[0006] (1). A glass-ceramic product, in terms of weight percentage of components, contains: SiO2: 40 - 55%; Al2O3: 15 - 30%; Li2O: 0.1 - 6%; ZnO: 9 - 20%; MgO: 0.1 - 6%; TiO2: 0.5 - 7%.

[0007] (2). The glass-ceramic product according to (1), in terms of weight percentage of components, further contains: P2O5 + ZrO2: 0 - 8%; and / or Na2O: 0 - 6%; and / or B2O3: 0 - 4%; and / or K2O: 0 - 3%; and / or CaO + BaO + SrO: 0 - 5%; and / or Y2O3: 0 - 6%; and / or fining agent: 0 - 2%.

[0008] (3). A glass-ceramic product, the components of which contain SiO2, Al2O3, ZnO and TiO2, the glass-ceramic product contains a spinel crystal phase, and the drop resistance of the glass-ceramic product is more than 1200 mm.

[0009] (4). Glass-ceramic products containing spinel crystal phase, with the ball-drop test height of the glass-ceramic products being 1000 mm or more.

[0010] (5). Glass-ceramic products, whose components contain SiO2, Al2O3, Li2O, ZnO, and TiO2, with the extrusion resistance strength of the glass-ceramic products being 400 N or more.

[0011] (6). Glass-ceramic products, whose components contain SiO2, Al2O3, Li2O, ZnO, and TiO2, with the haze of the glass-ceramic products having a thickness of 1 mm or less being 0.3% or less.

[0012] (7). Glass-ceramic products containing spinel crystal phase, with the average light |B| value of the glass-ceramic products having a thickness of 1 mm or less in the range of 400 - 800 nm being 1.0 or less.

[0013] (8). Glass-ceramic products, whose components contain SiO2, Al2O3, Li2O, ZnO, and TiO2, with the surface stress of the glass-ceramic products being 200 MPa or more.

[0014] (9). Glass-ceramic products, whose components contain SiO2, Al2O3, Li2O, ZnO, and TiO2, with the grain size of the glass-ceramic products being 60 nm or less.

[0015] (10). Glass-ceramic products containing spinel crystal phase, with the ion-exchange layer depth of the glass-ceramic products being 75 μm or more.

[0016] (11). Glass-ceramic products containing spinel crystal phase, with the light transmittance of the glass-ceramic products having a thickness of 1 mm or less at a wavelength of 550 nm being 87.0% or more.

[0017] (12). Glass-ceramic products, whose components contain SiO2, Al2O3, and ZnO, and contain spinel crystal phase.

[0018] (13). Glass-ceramic products, whose components contain SiO2, Al2O3, Li2O, and ZnO, with the Vickers hardness of the glass-ceramic products being 650 kgf / mm 2 or more.

[0019] (14). The glass-ceramics product according to any one of (3) to (13), wherein the components are expressed in weight percentages and contain: SiO2: 40 to 55%; and / or Al2O3: 15 to 30%; and / or Li2O: 0.1 to 6%; and / or ZnO: 9 to 20%; and / or MgO: 0.1 to 6%; and / or TiO2: 0.5 to 7%; and / or P2O5 + ZrO2: 0 to 8%; and / or Na2O: 0 to 6%; and / or B2O3: 0 to 4%; and / or K2O: 0 to 3%; and / or CaO + BaO + SrO: 0 to 5%; and / or Y2O3: 0 to 6%; and / or clarifying agent: 0 to 2%.

[0020] (15). The glass-ceramics product, wherein the components are expressed in weight percentages and are composed of: SiO2: 40 to 55%; Al2O3: 15 to 30%; Li2O: 0.1 to 6%; ZnO: 9 to 20%; MgO: 0.1 to 6%; TiO2: 0.5 to 7%; P2O5 + ZrO2: 0 to 8%; Na2O: 0 to 6%; B2O3: 0 to 4%; K2O: 0 to 3%; CaO + BaO + SrO: 0 to 5%; Y2O3: 0 to 6%; clarifying agent: 0 to 2%.

[0021] (16). The glass-ceramics product according to any one of (1) to (15), wherein the components are expressed in weight percentages and satisfy one or more of the following 7 cases:

[0022] 1) Li2O / TiO2 is 0.2 to 4.5, preferably Li2O / TiO2 is 0.5 to 3.5, more preferably Li2O / TiO2 is 0.7 to 2.5, and further preferably Li2O / TiO2 is 0.75 to 1.5;

[0023] 2) Al2O3 + ZnO is 26 to 45%, preferably Al2O3 + ZnO is 30 to 42%, more preferably Al2O3 + ZnO is 32 to 42%, and further preferably Al2O3 + ZnO is 35 to 40%;

[0024] 3) Al2O3 / ZnO is 1.0 to 3.0, preferably Al2O3 / ZnO is 1.2 to 2.8, more preferably Al2O3 / ZnO is 1.25 to 2.5, and further preferably Al2O3 / ZnO is 1.5 to 2.3;

[0025] 4) SiO2 / Al2O3 is 1.5 to 3.2, preferably SiO2 / Al2O3 is 1.7 to 3.0, more preferably SiO2 / Al2O3 is 1.8 to 2.8, and further preferably SiO2 / Al2O3 is 2.0 to 2.5;

[0026] 5) The value of (TiO2 + ZnO) / Al2O3 is from 0.4 to 1.5, preferably (TiO2 + ZnO) / Al2O3 is from 0.5 to 1.2, more preferably (TiO2 + ZnO) / Al2O3 is from 0.6 to 1.0, and further preferably (TiO2 + ZnO) / Al2O3 is from 0.6 to 0.9;

[0027] 6) The value of (Li2O + MgO) / TiO2 is from 0.3 to 8.0, preferably (Li2O + MgO) / TiO2 is from 0.5 to 5.0, more preferably (Li2O + MgO) / TiO2 is from 1.0 to 3.0, and further preferably (Li2O + MgO) / TiO2 is from 1.2 to 2.5;

[0028] 7) The value of Al2O3 / (MgO + TiO2) is from 1.3 to 10.0, preferably Al2O3 / (MgO + TiO2) is from 1.5 to 8.0, more preferably Al2O3 / (MgO + TiO2) is from 2.5 to 6.5, and further preferably Al2O3 / (MgO + TiO2) is from 3.0 to 5.5.

[0029] (17). For the glass-ceramic article according to any one of (1) to (15), its components are expressed in weight percentages and satisfy one or more of the following 4 cases:

[0030] 1) The value of (Al2O3 + Li2O) / P2O5 is from 5.0 to 45.0, preferably (Al2O3 + Li2O) / P2O5 is from 7.0 to 35.0, more preferably (Al2O3 + Li2O) / P2O5 is from 8.0 to 30.0, and further preferably (Al2O3 + Li2O) / P2O5 is from 10.0 to 25.0;

[0031] 2) The value of P2O5 / ZrO2 is from 0.1 to 5.0, preferably P2O5 / ZrO2 is from 0.2 to 3.0, more preferably P2O5 / ZrO2 is from 0.5 to 2.0, and further preferably P2O5 / ZrO2 is from 0.6 to 1.5;

[0032] 3) The value of (SiO2 + Na2O) / ZnO is from 2.2 to 6.2, preferably (SiO2 + Na2O) / ZnO is from 2.5 to 6.0, more preferably (SiO2 + Na2O) / ZnO is from 2.8 to 5.5, and further preferably (SiO2 + Na2O) / ZnO is from 3.0 to 5.0;

[0033] 4) The value of (Na2O + K2O) / ZnO is 0.8 or less, preferably (Na2O + K2O) / ZnO is 0.6 or less, more preferably (Na2O + K2O) / ZnO is 0.4 or less, and further preferably (Na2O + K2O) / ZnO is 0.2 or less.

[0034] (18). The glass-ceramic article according to any one of (1) to (15), in terms of weight percentage, contains: SiO2: 45 to 53%, preferably SiO2: 48 to 52%; and / or Al2O3: 18 to 25%, preferably Al2O3: 20 to 23%; and / or Li2O: 1 to 5%, preferably Li2O: 2 to 4%; and / or ZnO: 11 to 18%, preferably ZnO: 12 to 16%; and / or MgO: 1 to 5%, preferably MgO: 2 to 4%; and / or TiO2: 1 to 6%, preferably TiO2: 2 to 5%; and / or P2O5 + ZrO2: 0.1 to 7%, preferably P2O5 + ZrO2: 0.5 to 5%; and / or Na2O: 0 to 4%, preferably Na2O: 0 to 2%; and / or B2O3: 0 to 2%, preferably B2O3: 0 to 1%; and / or K2O: 0 to 2%, preferably K2O: 0 to 1%; and / or CaO + BaO + SrO: 0 to 4%, preferably CaO + BaO + SrO: 0 to 2%; and / or Y2O3: 0 to 4%, preferably Y2O3: 0 to 2%; and / or clarifying agent: 0 to 1%, preferably clarifying agent: 0 to 0.5%.

[0035] (19). The glass-ceramic article according to any one of (1) to (15), in terms of weight percentage, contains: P2O5: 0 to 5%, preferably P2O5: 0.5 to 4%, more preferably P2O5: 1 to 3%; and / or ZrO2: 0 to 5%, preferably ZrO2: 0.5 to 4%, more preferably ZrO2: 1 to 3%.

[0036] (20). The glass-ceramic article according to any one of (1) to (15), the glass-ceramic article contains a spinel crystal phase, preferably the spinel crystal phase has a higher weight percentage than other crystal phases, more preferably the spinel crystal phase accounts for 20 to 60% of the weight of the glass-ceramic article, further preferably the spinel crystal phase accounts for 25 to 50% of the weight of the glass-ceramic article, still further preferably the spinel crystal phase accounts for 25 to 45% of the weight of the glass-ceramic article, and even further preferably the spinel crystal phase accounts for 30 to 45% of the weight of the glass-ceramic article.

[0037] (21). The glass-ceramic article according to any one of (1) to (15), the glass-ceramic article contains a quartz crystal phase, preferably the quartz crystal phase accounts for 20% or less of the weight of the glass-ceramic article, more preferably the quartz crystal phase accounts for 10% or less of the weight of the glass-ceramic article, further preferably the quartz crystal phase accounts for 5% or less of the weight of the glass-ceramic article, and still further preferably the glass-ceramic article does not contain a quartz crystal phase.

[0038] (22). The glass-ceramic product according to any one of (1) to (14), in terms of weight percentage, its components contain: La2O3 + Gd2O3 + Yb2O3 + Nb2O5 + WO3 + Bi2O3 + Ta2O5 + TeO2: 0 to 5%, preferably La2O3 + Gd2O3 + Yb2O3 + Nb2O5 + WO3 + Bi2O3 + Ta2O5 + TeO2: 0 to 2%, more preferably La2O3 + Gd2O3 + Yb2O3 + Nb2O5 + WO3 + Bi2O3 + Ta2O5 + TeO2: 0 to 1%, further preferably not containing La2O3, and / or not containing Gd2O3, and / or not containing Yb2O3, and / or not containing Nb2O5, and / or not containing WO3, and / or not containing Bi2O3, and / or not containing Ta2O5, and / or not containing TeO2.

[0039] (23). The glass-ceramic product according to any one of (1) to (15), the grain size of the glass-ceramic product is 60 nm or less, preferably 45 nm or less, more preferably 10 to 30 nm; and / or the depth of the ion-exchange layer is 75 μm or more, preferably 80 to 150 μm, more preferably 100 to 125 μm; and / or the surface stress is 200 MPa or more, preferably 250 to 400 MPa, more preferably 300 to 400 MPa; and / or the height of the ball-drop test is 1000 mm or more, preferably 1200 mm or more, more preferably 1500 mm or more; and / or the drop resistance is 1200 mm or more, preferably 1300 mm or more, more preferably 1400 mm or more; and / or the fracture toughness is 1.0 MPa·m 1 / 2 or more, preferably 1.2 MPa·m 1 / 2 or more, more preferably 1.2 to 1.6 MPa·m 1 / 2 ; and / or the four-point bending strength is 500 MPa or more, preferably 600 MPa or more, more preferably 700 to 1000 MPa; and / or the extrusion resistance is 400 N or more, preferably 400 to 550 N, more preferably 450 to 550 N; and / or the Vickers hardness is 650 kgf / mm 2 or more, preferably 660 kgf / mm 2 or more, more preferably 680 to 750 kgf / mm 2 .

[0040] (24). The glass-ceramic article according to any one of (1) to (15), the haze of the glass-ceramic article with a thickness of less than 1 mm is 0.3% or less, preferably 0.25% or less, more preferably 0.05 to 0.2%; and / or the average light transmittance at a wavelength of 400 to 800 nm is 87.0% or more, preferably 88.5% or more, more preferably 89.5% or more; and / or the light transmittance at a wavelength of 550 nm is 87.0% or more, preferably 88.0% or more, more preferably 89.0% or more; and / or the average light |B| value at 400 to 800 nm is 1.0 or less, preferably 0.8 or less, more preferably 0.3 to 0.6.

[0041] (25). The glass-ceramic article according to (24), the thickness of the glass-ceramic article is 0.2 to 1 mm, preferably 0.3 to 0.9 mm, more preferably 0.5 to 0.8 mm, further preferably 0.55 mm or 0.6 mm or 0.68 mm or 0.7 mm or 0.75 mm.

[0042] (26). The glass-ceramic article according to any one of (1) to (14), in terms of weight percentage, its components contain: NiO: 0 to 4%; and / or Ni2O3: 0 to 4%; and / or CoO: 0 to 2%; and / or Co2O3: 0 to 2%; and / or Fe2O3: 0 to 7%; and / or MnO2: 0 to 4%; and / or Er2O3: 0 to 8%; and / or Nd2O3: 0 to 8%; and / or Cu2O: 0 to 4%; and / or Pr2O3: 0 to 8%; and / or CeO2: 0 to 4%.

[0043] (27). The glass-ceramic article according to any one of (1) to (14), in terms of weight percentage, its components contain: NiO: 0.1 to 4%; and / or Ni2O3: 0.1 to 4%; and / or CoO: 0.05 to 2%; and / or Co2O3: 0.05 to 2%; and / or Fe2O3: 0.2 to 7%; and / or MnO2: 0.1 to 4%; and / or Er2O3: 0.4 to 8%; and / or Nd2O3: 0.4 to 8%; and / or Cu2O: 0.5 to 4%; and / or Pr2O3: 0.4 to 8%; and / or CeO2: 0.5 to 4%.

[0044] (28). The glass-ceramic article according to any one of (1) to (14), wherein the components are expressed in weight percentages and contain: NiO: 0.1 to 3%; and / or Ni₂O₃: 0.1 to 3%; and / or CoO: 0.05 to 1.8%; and / or Co₂O₃: 0.05 to 1.8%; and / or Fe₂O₃: 0.2 to 5%; and / or MnO₂: 0.1 to 3%; and / or Er₂O₃: 0.4 to 6%; and / or Nd₂O₃: 0.4 to 6%; and / or Cu₂O: 0.5 to 3%; and / or Pr₂O₃: 0.4 to 6%; and / or CeO₂: 0.5 to 3%.

[0045] (29). The glass-ceramic article according to any one of (1) to (14), wherein the components are expressed in weight percentages and contain: NiO: 0.1 to 3%; and / or Ni₂O₃: 0.1 to 3%.

[0046] (30). The glass-ceramic article according to any one of (1) to (14), wherein the components are expressed in weight percentages and contain: CoO: 0.05 to 1.8%; and / or Co₂O₃: 0.05 to 1.8%.

[0047] (31). The glass-ceramic article according to any one of (1) to (14), wherein the components are expressed in weight percentages and contain: Cu₂O: 0.5 to 3%; and / or CeO₂: 0.5 to 3%.

[0048] (32). The glass-ceramic article according to any one of (1) to (14), wherein the components are expressed in weight percentages and contain: Fe₂O₃: 0.2 to 5%, CoO: 0.05 to 0.3%; or Fe₂O₃: 0.2 to 5%, Co₂O₃: 0.05 to 0.3%; or Fe₂O₃: 0.2 to 5%, CoO: 0.05 to 0.3%, NiO: 0.1 to 1%; or Fe₂O₃: 0.2 to 5%, Co₂O₃: 0.05 to 0.3%, NiO: 0.1 to 1%.

[0049] (33). The glass-ceramic article according to any one of (1) to (14), wherein the components are expressed in weight percentages and contain: Pr₂O₃: 0.4 to 6%; or Fe₂O₃: 0.2 to 5%; or MnO₂: 0.1 to 3%; or Er₂O₃: 0.4 to 6%; or Nd₂O₃: 0.4 to 6%.

[0050] (34). The glass-ceramic article according to any one of (1) to (14), wherein the components are expressed in weight percentages and contain: Er₂O₃: 0.4 to 6%, Nd₂O₃: 0.4 to 4%, MnO₂: 0.1 to 2%.

[0051] (35). Glass-ceramics, the components of which are expressed in weight percentages, contain: SiO2: 40 - 55%; Al2O3: 15 - 30%; Li2O: 0.1 - 6%; ZnO: 9 - 20%; MgO: 0.1 - 6%; TiO2: 0.5 - 7%.

[0052] (36). The glass-ceramics according to (35), the components of which are expressed in weight percentages, further contain: P2O5 + ZrO2: 0 - 8%; and / or Na2O: 0 - 6%; and / or B2O3: 0 - 4%; and / or K2O: 0 - 3%; and / or CaO + BaO + SrO: 0 - 5%; and / or Y2O3: 0 - 6%; and / or clarifying agent: 0 - 2%.

[0053] (37). Glass-ceramics, the components of which contain SiO2, Al2O3, ZnO and TiO2, the glass-ceramics contain spinel crystal phase, and the Vickers hardness of the glass-ceramics is 550 kgf / mm 2 or more.

[0054] (38). Glass-ceramics, the components of which contain SiO2, Al2O3, Li2O, ZnO and TiO2, the glass-ceramics contain spinel crystal phase.

[0055] (39). Glass-ceramics contain spinel crystal phase, and the grain size of the glass-ceramics is 60 nm or less.

[0056] (40). Glass-ceramics, the components of which contain SiO2, Al2O3, Li2O, ZnO and TiO2, the haze of the glass-ceramics with a thickness of 1 mm or less is 0.3% or less.

[0057] (41). Glass-ceramics contain spinel crystal phase, and the light transmittance of the glass-ceramics with a thickness of 1 mm or less at a wavelength of 550 nm is 87.0% or more.

[0058] (42). Glass-ceramics, the components of which contain SiO2, Al2O3, Li2O, ZnO and TiO2, the Young's modulus of the glass-ceramics is 80 - 110 GPa.

[0059] (43). Glass-ceramics, the components of which contain SiO2, Al2O3, Li2O and ZnO, the average light |B| value of the glass-ceramics with a thickness of 1 mm or less in the range of 400 - 800 nm is 1.0 or less.

[0060] (44). Glass-ceramics, the components of which contain SiO2, Al2O3 and ZnO, the average light transmittance of the glass-ceramics with a thickness of 1 mm or less at a wavelength of 400 - 800 nm is 87.0% or more.

[0061] (45). The glass-ceramics according to any one of (37) to (44), in terms of weight percentage, contains: SiO2: 40 - 55%; and / or Al2O3: 15 - 30%; and / or Li2O: 0.1 - 6%; and / or ZnO: 9 - 20%; and / or MgO: 0.1 - 6%; and / or TiO2: 0.5 - 7%; and / or P2O5+ZrO2: 0 - 8%; and / or Na2O: 0 - 6%; and / or B2O3: 0 - 4%; and / or K2O: 0 - 3%; and / or CaO+BaO+SrO: 0 - 5%; and / or Y2O3: 0 - 6%; and / or fining agent: 0 - 2%.

[0062] (46). The glass-ceramics, in terms of weight percentage, consists of SiO2: 40 - 55%; Al2O3: 15 - 30%; Li2O: 0.1 - 6%; ZnO: 9 - 20%; MgO: 0.1 - 6%; TiO2: 0.5 - 7%; P2O5+ZrO2: 0 - 8%; Na2O: 0 - 6%; B2O3: 0 - 4%; K2O: 0 - 3%; CaO+BaO+SrO: 0 - 5%; Y2O3: 0 - 6%; fining agent: 0 - 2%.

[0063] (47). The glass-ceramics according to any one of (35) to (46), in terms of weight percentage, satisfies one or more of the following 7 cases:

[0064] 1) Li2O / TiO2 is 0.2 - 4.5, preferably Li2O / TiO2 is 0.5 - 3.5, more preferably Li2O / TiO2 is 0.7 - 2.5, and further preferably Li2O / TiO2 is 0.75 - 1.5;

[0065] 2) Al2O3+ZnO is 26 - 45%, preferably Al2O3+ZnO is 30 - 42%, more preferably Al2O3+ZnO is 32 - 42%, and further preferably Al2O3+ZnO is 35 - 40%;

[0066] 3) Al2O3 / ZnO is 1.0 - 3.0, preferably Al2O3 / ZnO is 1.2 - 2.8, more preferably Al2O3 / ZnO is 1.25 - 2.5, and further preferably Al2O3 / ZnO is 1.5 - 2.3;

[0067] 4) SiO2 / Al2O3 is 1.5 - 3.2, preferably SiO2 / Al2O3 is 1.7 - 3.0, more preferably SiO2 / Al2O3 is 1.8 - 2.8, and further preferably SiO2 / Al2O3 is 2.0 - 2.5;

[0068] 5) The content of (TiO2 + ZnO) / Al2O3 is 0.4 to 1.5, preferably (TiO2 + ZnO) / Al2O3 is 0.5 to 1.2, more preferably (TiO2 + ZnO) / Al2O3 is 0.6 to 1.0, and further preferably (TiO2 + ZnO) / Al2O3 is 0.6 to 0.9;

[0069] 6) The content of (Li2O + MgO) / TiO2 is 0.3 to 8.0, preferably (Li2O + MgO) / TiO2 is 0.5 to 5.0, more preferably (Li2O + MgO) / TiO2 is 1.0 to 3.0, and further preferably (Li2O + MgO) / TiO2 is 1.2 to 2.5;

[0070] 7) The content of Al2O3 / (MgO + TiO2) is 1.3 to 10.0, preferably Al2O3 / (MgO + TiO2) is 1.5 to 8.0, more preferably Al2O3 / (MgO + TiO2) is 2.5 to 6.5, and further preferably Al2O3 / (MgO + TiO2) is 3.0 to 5.5.

[0071] (48). The glass-ceramics according to any one of (35) to (46), the components of which are expressed in weight percentages, satisfy one or more of the following 4 cases:

[0072] 1) The content of (Al2O3 + Li2O) / P2O5 is 5.0 to 45.0, preferably (Al2O3 + Li2O) / P2O5 is 7.0 to 35.0, more preferably (Al2O3 + Li2O) / P2O5 is 8.0 to 30.0, and further preferably (Al2O3 + Li2O) / P2O5 is 10.0 to 25.0;

[0073] 2) The content of P2O5 / ZrO2 is 0.1 to 5.0, preferably P2O5 / ZrO2 is 0.2 to 3.0, more preferably P2O5 / ZrO2 is 0.5 to 2.0, and further preferably P2O5 / ZrO2 is 0.6 to 1.5;

[0074] 3) The content of (SiO2 + Na2O) / ZnO is 2.2 to 6.2, preferably (SiO2 + Na2O) / ZnO is 2.5 to 6.0, more preferably (SiO2 + Na2O) / ZnO is 2.8 to 5.5, and further preferably (SiO2 + Na2O) / ZnO is 3.0 to 5.0;

[0075] 4) The content of (Na2O + K2O) / ZnO is 0.8 or less, preferably (Na2O + K2O) / ZnO is 0.6 or less, more preferably (Na2O + K2O) / ZnO is 0.4 or less, and further preferably (Na2O + K2O) / ZnO is 0.2 or less.

[0076] (49). The glass-ceramics according to any one of (35) to (46), in terms of weight percentage, the components thereof contain: SiO2: 45 to 53%, preferably SiO2: 48 to 52%; and / or Al2O3: 18 to 25%, preferably Al2O3: 20 to 23%; and / or Li2O: 1 to 5%, preferably Li2O: 2 to 4%; and / or ZnO: 11 to 18%, preferably ZnO: 12 to 16%; and / or MgO: 1 to 5%, preferably MgO: 2 to 4%; and / or TiO2: 1 to 6%, preferably TiO2: 2 to 5%; and / or P2O5 + ZrO2: 0.1 to 7%, preferably P2O5 + ZrO2: 0.5 to 5%; and / or Na2O: 0 to 4%, preferably Na2O: 0 to 2%; and / or B2O3: 0 to 2%, preferably B2O3: 0 to 1%; and / or K2O: 0 to 2%, preferably K2O: 0 to 1%; and / or CaO + BaO + SrO: 0 to 4%, preferably CaO + BaO + SrO: 0 to 2%; and / or Y2O3: 0 to 4%, preferably Y2O3: 0 to 2%; and / or clarifying agent: 0 to 1%, preferably clarifying agent: 0 to 0.5%.

[0077] (50). The glass-ceramics according to any one of (35) to (46), in terms of weight percentage, the components thereof contain: P2O5: 0 to 5%, preferably P2O5: 0.5 to 4%, more preferably P2O5: 1 to 3%; and / or ZrO2: 0 to 5%, preferably ZrO2: 0.5 to 4%, more preferably ZrO2: 1 to 3%.

[0078] (51). The glass-ceramics according to any one of (35) to (46), the glass-ceramics contain a spinel crystal phase, preferably the spinel crystal phase has a higher weight percentage than other crystal phases, more preferably the weight percentage of the spinel crystal phase in the glass-ceramics is 20 to 60%, further preferably the weight percentage of the spinel crystal phase in the glass-ceramics is 25 to 50%, still further preferably the weight percentage of the spinel crystal phase in the glass-ceramics is 25 to 45%, and even further preferably the weight percentage of the spinel crystal phase in the glass-ceramics is 30 to 45%.

[0079] (52). The glass-ceramics according to any one of (35) to (46), the glass-ceramics contain a quartz crystal phase, preferably the weight percentage of the quartz crystal phase in the glass-ceramics is 20% or less, more preferably the weight percentage of the quartz crystal phase in the glass-ceramics is 10% or less, further preferably the weight percentage of the quartz crystal phase in the glass-ceramics is 5% or less, and still further preferably the glass-ceramics do not contain a quartz crystal phase.

[0080] (53). The glass-ceramics according to any one of (35) to (45), in terms of weight percentage, contains: La2O3 + Gd2O3 + Yb2O3 + Nb2O5 + WO3 + Bi2O3 + Ta2O5 + TeO2: 0 to 5%, preferably La2O3 + Gd2O3 + Yb2O3 + Nb2O5 + WO3 + Bi2O3 + Ta2O5 + TeO2: 0 to 2%, more preferably La2O3 + Gd2O3 + Yb2O3 + Nb2O5 + WO3 + Bi2O3 + Ta2O5 + TeO2: 0 to 1%, and further preferably does not contain La2O3, and / or does not contain Gd2O3, and / or does not contain Yb2O3, and / or does not contain Nb2O5, and / or does not contain WO3, and / or does not contain Bi2O3, and / or does not contain Ta2O5, and / or does not contain TeO2.

[0081] (54). The glass-ceramics according to any one of (35) to (46), the grain size of the glass-ceramics is 60 nm or less, preferably 45 nm or less, more preferably 10 to 30 nm; and / or the Young's modulus is 80 to 110 GPa, preferably 85 to 105 GPa, more preferably 90 to 105 GPa; and / or the Vickers hardness is 550 kgf / mm 2 or more, preferably 580 kgf / mm 2 or more, more preferably 600 to 650 kgf / mm 2 .

[0082] (55). The glass-ceramics according to any one of (35) to (46), the haze of the glass-ceramics with a thickness of 1 mm or less is 0.3% or less, preferably 0.25% or less, more preferably 0.05 to 0.2%; and / or the average light transmittance at a wavelength of 400 to 800 nm is 87.0% or more, preferably 88.5% or more, more preferably 89.5% or more; and / or the light transmittance at a wavelength of 550 nm is 87.0% or more, preferably 88.0% or more, more preferably 89.0% or more; and / or the average light |B| value at 400 to 800 nm is 1.0 or less, preferably 0.8 or less, more preferably 0.3 to 0.6.

[0083] (56). The glass-ceramics according to (55), the thickness of the glass-ceramics is 0.2 to 1 mm, preferably 0.3 to 0.9 mm, more preferably 0.5 to 0.8 mm, and further preferably 0.55 mm or 0.6 mm or 0.68 mm or 0.7 mm or 0.75 mm.

[0084] (57). The glass-ceramics according to any one of (35) to (45), in terms of weight percentage, contains: NiO: 0 to 4%; and / or Ni2O3: 0 to 4%; and / or CoO: 0 to 2%; and / or Co2O3: 0 to 2%; and / or Fe2O3: 0 to 7%; and / or MnO2: 0 to 4%; and / or Er2O3: 0 to 8%; and / or Nd2O3: 0 to 8%; and / or Cu2O: 0 to 4%; and / or Pr2O3: 0 to 8%; and / or CeO2: 0 to 4%.

[0085] (58). The glass-ceramics according to any one of (35) to (45), in terms of weight percentage, contains: NiO: 0.1 to 4%; and / or Ni2O3: 0.1 to 4%; and / or CoO: 0.05 to 2%; and / or Co2O3: 0.05 to 2%; and / or Fe2O3: 0.2 to 7%; and / or MnO2: 0.1 to 4%; and / or Er2O3: 0.4 to 8%; and / or Nd2O3: 0.4 to 8%; and / or Cu2O: 0.5 to 4%; and / or Pr2O3: 0.4 to 8%; and / or CeO2: 0.5 to 4%.

[0086] (59). The glass-ceramics according to any one of (35) to (45), in terms of weight percentage, contains: NiO: 0.1 to 3%; and / or Ni2O3: 0.1 to 3%; and / or CoO: 0.05 to 1.8%; and / or Co2O3: 0.05 to 1.8%; and / or Fe2O3: 0.2 to 5%; and / or MnO2: 0.1 to 3%; and / or Er2O3: 0.4 to 6%; and / or Nd2O3: 0.4 to 6%; and / or Cu2O: 0.5 to 3%; and / or Pr2O3: 0.4 to 6%; and / or CeO2: 0.5 to 3%.

[0087] (60). The glass-ceramics according to any one of (35) to (45), in terms of weight percentage, contains: NiO: 0.1 to 3%; and / or Ni2O3: 0.1 to 3%.

[0088] (61). The glass-ceramics according to any one of (35) to (45), in terms of weight percentage, contains: CoO: 0.05 to 1.8%; and / or Co2O3: 0.05 to 1.8%.

[0089] (62). The glass-ceramics according to any one of (35) to (45), in terms of weight percentage, contains: Cu2O: 0.5 to 3%; and / or CeO2: 0.5 to 3%.

[0090] (63). The glass-ceramics according to any one of (35) to (45), in terms of weight percentage, contains: Fe2O3: 0.2 to 5%, CoO: 0.05 to 0.3%; or Fe2O3: 0.2 to 5%, Co2O3: 0.05 to 0.3%; or Fe2O3: 0.2 to 5%, CoO: 0.05 to 0.3%, NiO: 0.1 to 1%; or Fe2O3: 0.2 to 5%, Co2O3: 0.05 to 0.3%, NiO: 0.1 to 1%.

[0091] (64). The glass-ceramics according to any one of (35) to (45), in terms of weight percentage, contains: Pr2O3: 0.4 to 6%; or Fe2O3: 0.2 to 5%; or MnO2: 0.1 to 3%; or Er2O3: 0.4 to 6%; or Nd2O3: 0.4 to 6%.

[0092] (65). The glass-ceramics according to any one of (35) to (45), in terms of weight percentage, contains: Er2O3: 0.4 to 6%, Nd2O3: 0.4 to 4%, MnO2: 0.1 to 2%.

[0093] (66). The glass-ceramics compact contains the glass-ceramics according to any one of (35) to (65).

[0094] (67). The glass cover plate contains the glass-ceramics product according to any one of (1) to (34), and / or the glass-ceramics according to any one of (35) to (65), and / or the glass-ceramics compact according to (66).

[0095] (68). The glass component contains the glass-ceramics product according to any one of (1) to (34), and / or the glass-ceramics according to any one of (35) to (65), and / or the glass-ceramics compact according to (66).

[0096] (69). The electronic device contains the glass-ceramics product according to any one of (1) to (34), and / or the glass-ceramics according to any one of (35) to (65), and / or the glass-ceramics compact according to (66), and / or the glass cover plate according to (67), and / or the glass component according to (68).

[0097] (70). The display device contains the glass-ceramics product according to any one of (1) to (34), and / or the glass-ceramics according to any one of (35) to (65), and / or the glass-ceramics compact according to (66), and / or the glass cover plate according to (67), and / or the glass component according to (68).

[0098] (71). The manufacturing method of any one of the glass-ceramic products (1) to (34), the method comprising the following steps: forming a base glass, forming a glass-ceramic from the base glass through a crystallization process, and then forming a glass-ceramic product from the glass-ceramic through a chemical strengthening process.

[0099] (72). The manufacturing method of the glass-ceramic product according to (71), wherein forming the base glass comprises the following steps: mixing raw materials evenly according to a component ratio, then putting them into a crucible, melting in an electric furnace or a gas furnace within a temperature range of 1350 to 1550 °C for 5 to 24 hours, preferably with a melting temperature of 1450 to 1550 °C, and then obtaining the base glass after clarification, homogenization, forming, and annealing, the clarification temperature being greater than 1550 °C but less than or equal to 1650 °C, and the annealing temperature being 450 to 600 °C.

[0100] (73). The manufacturing method of the glass-ceramic product according to (71), wherein the crystallization process comprises the following steps: heating to a specified crystallization treatment temperature, and after reaching the crystallization treatment temperature, maintaining its temperature for a certain period of time, and then cooling down, the crystallization treatment temperature being 600 to 800 °C, preferably 650 to 750 °C, and the holding time at the crystallization treatment temperature being 1 to 10 hours, preferably 3 to 6 hours.

[0101] (74). The manufacturing method of the glass-ceramic product according to (71), wherein the crystallization process comprises the following steps: performing a nucleation process treatment at a first temperature, and then performing a crystal growth process treatment at a second temperature.

[0102] (75). The manufacturing method of the glass-ceramic product according to (74), wherein the crystallization process comprises: the first temperature being 600 to 700 °C, the second temperature being greater than 700 °C but less than or equal to 800 °C, the holding time at the first temperature being 1 to 6 hours, and the holding time at the second temperature being 2 to 5 hours.

[0103] (76). The manufacturing method of the glass-ceramic product according to (71), wherein the chemical strengthening process comprises: immersing the glass-ceramic in a molten Na salt bath at 350 to 470 °C for 1 to 36 hours, preferably with a temperature range of 400 to 460 °C and a preferred time range of 2 to 15 hours; and / or immersing the glass-ceramic in a mixed salt bath of molten K salt and Na salt at 360 to 450 °C for 1 to 36 hours, preferably with a time range of 2 to 24 hours.

[0104] (77). The manufacturing method of any one of the glass-ceramics (35) to (65), the method comprising the following steps: forming a base glass, and then forming a glass-ceramic from the base glass through a crystallization process.

[0105] (78). The manufacturing method of the glass-ceramics according to (77), wherein the formation of the base glass comprises the following steps: mixing the raw materials evenly according to the component ratio, then putting them into a crucible, melting in an electric furnace or a gas furnace within the temperature range of 1350 - 1550 °C for 5 - 24 hours, preferably the melting temperature is 1450 - 1550 °C, and then obtaining the base glass after clarification, homogenization, forming, and annealing. The clarification temperature is greater than 1550 °C but less than or equal to 1650 °C, and the annealing temperature is 450 - 600 °C.

[0106] (79). The manufacturing method of the glass-ceramics according to (77), wherein the crystallization process comprises the following steps: heating to the specified crystallization treatment temperature, after reaching the crystallization treatment temperature, maintaining its temperature for a certain period of time, and then cooling down. The crystallization treatment temperature is 600 - 800 °C, preferably 650 - 750 °C, and the holding time at the crystallization treatment temperature is 1 - 10 hours, preferably 3 - 6 hours.

[0107] (80). The manufacturing method of the glass-ceramics product according to (77), wherein the crystallization process comprises the following steps: performing a nucleation process treatment at the first temperature, and then performing a crystal growth process treatment at the second temperature.

[0108] (81). The manufacturing method of the glass-ceramics product according to (80), wherein the crystallization process comprises: the first temperature is 600 - 700 °C, the second temperature is greater than 700 °C but less than or equal to 800 °C, the holding time at the first temperature is 1 - 6 hours, and the holding time at the second temperature is 2 - 5 hours.

[0109] (82). The manufacturing method of the glass-ceramics formed body according to (66), wherein the method comprises grinding or polishing the glass-ceramics to make a glass-ceramics formed body, or forming the base glass or the glass-ceramics into a glass-ceramics formed body by a hot bending process or a pressing process at a certain temperature.

[0110] (83). The manufacturing method of the glass-ceramics formed body according to (82), wherein the method comprises the following steps: performing a primary crystallization heat treatment process on the base glass, including heating up, holding for nucleation, heating up again, holding for crystallization, and cooling down to room temperature to form a pre-crystallized glass; performing hot processing and forming on the pre-crystallized glass to obtain a glass-ceramics formed body.

[0111] (84). The manufacturing method of the glass-ceramics formed body according to (82), wherein the method comprises the following steps:

[0112] 1) Heating and preheating: Place the substrate glass, pre-crystallized glass, or glass-ceramics in a mold. The mold passes through each heating station in a hot bending machine in sequence and stays at each station for a certain period of time for heat preservation. The temperature in the preheating zone is 400 - 800 °C, the pressure is 0.01 - 0.05 MPa, and the time is 40 - 200 s.

[0113] 2) Pressing and forming: After preheating, the mold is transferred to the forming station. The hot bending machine applies a certain pressure to the mold. The pressure range is 0.1 - 0.8 Mpa, the temperature range in the forming station is 600 - 850 °C, and the forming time range is 40 - 200 s.

[0114] 3) Pressure holding and cooling: Transfer the mold to the cooling station and cool it down station by station. The cooling temperature range is 750 - 500 °C, the pressure is 0.01 - 0.05 Mpa, and the time is 40 - 200 s.

[0115] The beneficial effects of the present invention are as follows: Through reasonable component design, the glass-ceramics or glass-ceramic products obtained by the present invention have excellent mechanical properties and are applicable to display devices or electronic devices. Detailed implementation mode

[0116] The glass-ceramics and glass-ceramic products of the present invention are materials with crystalline phases (sometimes also referred to as crystals) and glass phases. The crystalline phases of the glass-ceramics and glass-ceramic products can be identified by the peak angles appearing in the X-ray diffraction pattern of X-ray diffraction analysis and / or measured by TEM-EDX.

[0117] Through repeated experiments and research, the inventors of the present invention obtained the glass-ceramics or glass-ceramic products of the present invention by specifying the content and content ratio of specific components constituting the glass-ceramics and glass-ceramic products as specific values and making them contain specific crystalline phases.

[0118] Next, the ranges of the components (ingredients) of the substrate glass, glass-ceramics, and glass-ceramic products of the present invention will be described. In this specification, unless otherwise specified, the content of each component is expressed as a weight percentage (wt%) relative to the total amount of the substrate glass, or glass-ceramics, or glass-ceramic product substance in terms of the composition converted into oxides. Here, the "composition converted into oxides" means that when oxides, double salts, hydroxides, etc., used as the constituent components of the substrate glass, glass-ceramics, or glass-ceramic products of the present invention decompose and turn into oxides when melted, the total amount of the oxides is taken as 100%. In addition, in this specification, when only referred to as glass, it is the substrate glass before crystallization (i.e., crystallization process treatment), and after the substrate glass is crystallized (i.e., crystallization process treatment), it is called glass-ceramics. Glass-ceramic products refer to the products obtained after chemical strengthening of the glass-ceramics.

[0119] Unless otherwise indicated in specific circumstances, the numerical ranges listed herein include upper and lower limit values, "above" and "below" include the endpoint values, and all integers and fractions within the range, not limited to the specific values listed when defining the range. The term "about" as used herein means that the formulation, parameters, and other quantities and characteristics are not, and need not be, exact, and may be approximate and / or larger or lower if necessary, which reflects tolerances, conversion factors, measurement errors, etc. The term "and / or" as used herein is inclusive, for example, "A; and / or B" means only A, only B, or both A and B.

[0120] In some embodiments of the present invention, the crystal phase in the glass-ceramics or glass-ceramic products contains a spinel crystal phase. Preferably, the spinel crystal phase includes a zinc aluminate spinel crystal phase (ZnAl2O4). In some embodiments, the spinel crystal phase has a higher weight percentage than other crystal phases. In some embodiments, the weight percentage of the spinel crystal phase in the glass-ceramics or glass-ceramic products is 20-60%, preferably the weight percentage of the spinel crystal phase in the glass-ceramics or glass-ceramic products is 25-50%, more preferably the weight percentage of the spinel crystal phase in the glass-ceramics or glass-ceramic products is 25-45%, and further preferably the weight percentage of the spinel crystal phase in the glass-ceramics or glass-ceramic products is 30-45%. In some embodiments, the weight percentage of the spinel crystal phase in the glass-ceramics or glass-ceramic products is 20%, 21%, 22%, 23%, 24%, 25%, 26%, 27%, 28%, 29%, 30%, 31%, 32%, 33%, 34%, 35%, 36%, 37%, 38%, 39%, 40%, 41%, 42%, 43%, 44%, 45%, 46%, 47%, 48%, 49%, 50%, 51%, 52%, 53%, 54%, 55%, 56%, 57%, 58%, 59%, 60%.

[0121] In some embodiments of the present invention, the crystalline phase in the glass-ceramics or glass-ceramic articles contains a quartz crystalline phase (including two cases of quartz and quartz solid solution). Preferably, the quartz crystalline phase includes β-quartz solid solution. In some embodiments, the weight percentage of the quartz crystalline phase in the glass-ceramics or glass-ceramic articles is 20% or less, preferably the weight percentage of the quartz crystalline phase in the glass-ceramics or glass-ceramic articles is 10% or less, and more preferably the weight percentage of the quartz crystalline phase in the glass-ceramics or glass-ceramic articles is 5% or less. In some embodiments, it is further preferred that the glass-ceramics or glass-ceramic articles do not contain a quartz crystalline phase. In some embodiments, the weight percentage of the quartz crystalline phase in the glass-ceramics or glass-ceramic articles is 0%, greater than 0%, 0.1%, 0.5%, 1%, 1.5%, 2%, 2.5%, 3%, 3.5%, 4%, 4.5%, 5%, 5.5%, 6%, 6.5%, 7%, 7.5%, 8%, 8.5%, 9%, 9.5%, 10%, 10.5%, 11%, 11.5%, 12%, 12.5%, 13%, 13.5%, 14%, 14.5%, 15%, 15.5%, 16%, 16.5%, 17%, 17.5%, 18%, 18.5%, 19%, 19.5%, 20%.

[0122] SiO2 is the network former of the glass-ceramics and glass-ceramic articles of the present invention. SiO2 can form a network structure by using the structural units of silicon-oxygen tetrahedrons to form the basic structure of silicate. In some embodiments, SiO2 is also a necessary component for forming the quartz crystalline phase. If the content of SiO2 is too low, the chemical stability of the glass-ceramics and glass-ceramic articles will deteriorate; if the content of SiO2 is too high, the viscosity of the glass will be greatly increased, the melting temperature will be raised, making it difficult to melt the materials, and increasing the forming difficulty of the matrix glass. Therefore, the content of SiO2 in the present invention is 40 - 55%, preferably 45 - 53%, and more preferably 48 - 52%. In some embodiments, it may contain about 40%, 40.5%, 41%, 41.5%, 42%, 42.5%, 43%, 43.5%, 44%, 44.5%, 45%, 45.5%, 46%, 46.5%, 47%, 47.5%, 48%, 48.5%, 49%, 49.5%, 50%, 50.5%, 51%, 51.5%, 52%, 52.5%, 53%, 53.5%, 54%, 54.5%, 55% of SiO2.

[0123] Al2O3 is beneficial to improving the mechanical properties and chemical stability of the glass-ceramics and glass-ceramic articles of the present invention, and is also a necessary component for forming the spinel crystalline phase in the present invention. Al2O3 can form [AlO4] tetrahedrons, replacing part of the [SiO4] tetrahedrons to form a network structure. The molecular volume of the [AlO4] tetrahedron is 41 cm 3 / mol, the molecular volume of the [SiO4] tetrahedron is 27.2 cm 3 / mol. After replacing part of the [SiO4] tetrahedrons with [AlO4] tetrahedrons, the molecular volume increases and the structural network space expands, which is beneficial to the diffusion of alkali metal ions during the chemical strengthening process and also beneficial to accepting a large amount of Na + , promoting ion exchange. If the content of Al2O3 is too low, it is not conducive to improving the strengthening effect and the precipitation of crystals, and the mechanical properties and chemical stability of the glass are poor. If the content of Al2O3 is too high, the glass melting is difficult, the melting temperature is high, and stones are likely to precipitate on the surface during forming. Therefore, the content of Al2O3 is 15-30%, preferably 18-25%, more preferably 20-23%. In some embodiments, it may contain about 15%, 15.5%, 16%, 16.5%, 17%, 17.5%, 18%, 18.5%, 19%, 19.5%, 20%, 20.5%, 21%, 21.5%, 22%, 22.5%, 23%, 23.5%, 24%, 24.5%, 25%, 25.5%, 26%, 26.5%, 27%, 27.5%, 28%, 28.5%, 29%, 29.5%, 30% of Al2O3.

[0124] In some embodiments, controlling the ratio SiO2 / Al2O3 between the content of SiO2 and the content of Al2O3 within the range of 1.5-3.2 is beneficial to increasing the ball-drop test height and four-point bending strength of the glass-ceramics and glass-ceramic products, and increasing the ion exchange layer depth and surface stress of the glass-ceramic products. Therefore, it is preferred that SiO2 / Al2O3 is 1.5-3.2, more preferably SiO2 / Al2O3 is 1.7-3.0, further preferably SiO2 / Al2O3 is 1.8-2.8, and even more preferably SiO2 / Al2O3 is 2.0-2.5. In some embodiments, the value of SiO2 / Al2O3 is 1.5, 1.55, 1.6, 1.65, 1.7, 1.75, 1.8, 1.85, 1.9, 1.95, 2.0, 2.05, 2.1, 2.15, 2.2, 2.25, 2.3, 2.35, 2.4, 2.45, 2.5, 2.55, 2.6, 2.65, 2.7, 2.75, 2.8, 2.85, 2.9, 2.95, 3.0, 3.05, 3.1, 3.15, 3.2.

[0125] Li2O can lower the melting point of the glass and is also a necessary component for participating in chemical strengthening and improving the mechanical properties of glass-ceramic products. On the other hand, Li2O can provide free oxygen and reduce the coloring of TiO2. If the content of Li2O is too high, the crystals in the glass-ceramics and glass-ceramic products are prone to grow and the crystal growth is unstable, which affects the transmittance of the glass-ceramics and glass-ceramic products and deteriorates the chemical stability. Therefore, the content of Li2O is 0.1-6%, preferably 1-5%, more preferably 2-4%. In some embodiments, about 0.1%, 0.2%, 0.3%, 0.4%, 0.5%, 1%, 1.5%, 2%, 2.5%, 3%, 3.5%, 4%, 4.5%, 5%, 5.5%, 6% of Li2O may be included.

[0126] ZnO is a necessary component for forming the spinel crystal phase in the present invention. The content of the spinel crystal phase can be regulated by controlling the contents of ZnO and Al2O3, taking into account the transmittance while ensuring the mechanical strength. If the content of ZnO is low, the crystal phase content in the glass-ceramics and glass-ceramic products is low, and the mechanical properties such as Vickers hardness and Young's modulus are poor. If the content of ZnO is too high, the residual Zn in the glass phase 2+ hinders the ion exchange during the chemical strengthening process and is not conducive to obtaining high-performance glass-ceramic products. Therefore, the content of ZnO is 9-20%, preferably 11-18%, more preferably 12-16%. In some embodiments, about 9%, 9.5%, 10%, 10.5%, 11%, 11.5%, 12%, 12.5%, 13%, 13.5%, 14%, 14.5%, 15%, 15.5%, 16%, 16.5%, 17%, 17.5%, 18%, 18.5%, 19%, 19.5%, 20% of ZnO may be included.

[0127] In some embodiments, controlling the total content of Al2O3 and ZnO, i.e., Al2O3 + ZnO, within the range of 26% to 45% is beneficial for the glass-ceramics and glass-ceramic products to obtain the desired content of spinel crystal phase. While improving the drop resistance and ball-drop test height of the glass-ceramics and glass-ceramic products, it prevents the surface stress of the glass-ceramic products from deteriorating. Therefore, it is preferred that Al2O3 + ZnO is 26% to 45%, more preferably Al2O3 + ZnO is 30% to 42%, further preferably Al2O3 + ZnO is 32% to 42%, and even more preferably Al2O3 + ZnO is 35% to 40%. In some embodiments, Al2O3 + ZnO is 26%, 26.5%, 27%, 27.5%, 28%, 28.5%, 29%, 29.5%, 30%, 30.5%, 31%, 31.5%, 32%, 32.5%, 33%, 33.5%, 34%, 34.5%, 35%, 35.5%, 36%, 36.5%, 37%, 37.5%, 38%, 38.5%, 39%, 39.5%, 40%, 40.5%, 41%, 41.5%, 42%, 42.5%, 43%, 43.5%, 44%, 44.5%, 45%.

[0128] In some embodiments, controlling the ratio of the content of Al2O3 to the content of ZnO, i.e., Al2O3 / ZnO, within the range of 1.0 to 3.0 is beneficial for improving the hardness of the glass-ceramics and glass-ceramic products, optimizing the Young's modulus, and preventing the transmittance of the glass-ceramics and glass-ceramic products from decreasing and the haze from deteriorating. Therefore, it is preferred that Al2O3 / ZnO is 1.0 to 3.0, more preferably Al2O3 / ZnO is 1.2 to 2.8, further preferably Al2O3 / ZnO is 1.25 to 2.5, and even more preferably Al2O3 / ZnO is 1.5 to 2.3. In some embodiments, Al2O3 / ZnO is 1.0, 1.05, 1.1, 1.15, 1.2, 1.25, 1.3, 1.35, 1.4, 1.45, 1.5, 1.55, 1.6, 1.65, 1.7, 1.75, 1.8, 1.85, 1.9, 1.95, 2.0, 2.05, 2.1, 2.15, 2.2, 2.25, 2.3, 2.35, 2.4, 2.45, 2.5, 2.55, 2.6, 2.65, 2.7, 2.75, 2.8, 2.85, 2.9, 2.95, 3.0.

[0129] TiO2 is a nucleating agent for the glass-ceramics and glass-ceramic products of the present invention. If the content of TiO2 is too high, it will cause serious coloring (brownish yellow) of the glass-ceramics and glass-ceramic products, reduce the transmittance of the glass-ceramics and glass-ceramic products in the visible light region, and increase the haze and |B| value. In addition, when the content of TiO2 is too high, the glass is prone to become milky during forming and crystallization, making the glass opaque. Therefore, the content of TiO2 in the present invention is 0.5-7%, preferably 1-6%, more preferably 2-5%. In some embodiments, it may contain about 0.5%, 1%, 1.5%, 2%, 2.5%, 3%, 3.5%, 4%, 4.5%, 5%, 5.5%, 6%, 6.5%, 7% of TiO2.

[0130] In some embodiments, controlling the ratio Li2O / TiO2 between the content of Li2O and the content of TiO2 within the range of 0.2-4.5 can effectively reduce the coloring of Ti 3+ ions in the glass-ceramics and glass-ceramic products, improve the transmittance of the glass-ceramics and glass-ceramic products, and optimize the haze and |B| value of the glass-ceramics and glass-ceramic products. Therefore, the preferred Li2O / TiO2 is 0.2-4.5, more preferably Li2O / TiO2 is 0.5-3.5, further preferably Li2O / TiO2 is 0.7-2.5, and even more preferably Li2O / TiO2 is 0.75-1.5. In some embodiments, Li2O / TiO2 is 0.2, 0.25, 0.3, 0.35, 0.4, 0.45, 0.5, 0.55, 0.6, 0.65, 0.7, 0.75, 0.8, 0.85, 0.9, 0.95, 1.0, 1.05, 1.1, 1.15, 1.2, 1.25, 1.3, 1.35, 1.4, 1.45, 1.5, 1.55, 1.6, 1.65, 1.7, 1.75, 1.8, 1.85, 1.9, 1.95, 2.0, 2.1, 2.2, 2.3, 2.4, 2.5, 2.6, 2.7, 2.8, 2.9, 3.0, 3.1, 3.2, 3.3, 3.4, 3.5, 3.6, 3.7, 3.8, 3.9, 4.0, 4.1, 4.2, 4.3, 4.4, 4.5.

[0131] In some embodiments, the ratio (TiO2 + ZnO) / Al2O3 of the total content of TiO2 and ZnO to the content of Al2O3 is in the range of 0.4 to 1.5, which can optimize the chemical strengthening performance of the glass-ceramics, increase the depth of the ion exchange layer of the glass-ceramics products, and improve the fracture toughness, four-point bending strength and ball-drop test height. Therefore, it is preferred that (TiO2 + ZnO) / Al2O3 is 0.4 to 1.5, more preferably (TiO2 + ZnO) / Al2O3 is 0.5 to 1.2, further preferably (TiO2 + ZnO) / Al2O3 is 0.6 to 1.0, and even more preferably (TiO2 + ZnO) / Al2O3 is 0.6 to 0.9. In some embodiments, (TiO2 + ZnO) / Al2O3 is 0.4, 0.45, 0.5, 0.55, 0.6, 0.65, 0.7, 0.75, 0.8, 0.85, 0.9, 0.95, 1.0, 1.05, 1.1, 1.15, 1.2, 1.25, 1.3, 1.35, 1.4, 1.45, 1.5.

[0132] ZrO2 can be used as a nucleating agent for glass-ceramics and glass-ceramics products. When used simultaneously with TiO2, it can make the number of crystal nuclei of the glass-ceramics as many as possible. When there are more crystal nuclei, it is beneficial to the stable growth of crystals and the uniform grain size. If the content of ZrO2 is too high, the melting difficulty of the glass will increase. Therefore, the content of ZrO2 is 0 to 5%, preferably 0.5 to 4%, and more preferably 1 to 3%. In some embodiments, it may contain about 0%, greater than 0%, 0.01%, 0.05%, 0.1%, 0.2%, 0.3%, 0.4%, 0.5%, 0.6%, 0.7%, 0.8%, 0.9%, 1%, 1.1%, 1.2%, 1.3%, 1.4%, 1.5%, 1.6%, 1.7%, 1.8%, 1.9%, 2%, 2.1%, 2.2%, 2.3%, 2.4%, 2.5%, 2.6%, 2.7%, 2.8%, 2.9%, 3%, 3.1%, 3.2%, 3.3%, 3.4%, 3.5%, 3.6%, 3.7%, 3.8%, 3.9%, 4%, 4.1%, 4.2%, 4.3%, 4.4%, 4.5%, 4.6%, 4.7%, 4.8%, 4.9%, 5% of ZrO2.

[0133] ZrO2 has a low solubility in the glass system of the present invention. In some embodiments, by containing a certain amount of P2O5, the solubility of ZrO2 in the glass can be increased; however, if too much P2O5 is contained, the glass forming is prone to phase separation, resulting in a decrease in the chemical stability of the glass-ceramics and glass-ceramic products. Therefore, in the present invention, the content of P2O5 is 0-5%, preferably 0.5-4%, more preferably 1-3%. In some embodiments, it may contain about 0%, greater than 0%, 0.01%, 0.05%, 0.1%, 0.2%, 0.3%, 0.4%, 0.5%, 0.6%, 0.7%, 0.8%, 0.9%, 1%, 1.1%, 1.2%, 1.3%, 1.4%, 1.5%, 1.6%, 1.7%, 1.8%, 1.9%, 2%, 2.1%, 2.2%, 2.3%, 2.4%, 2.5%, 2.6%, 2.7%, 2.8%, 2.9%, 3%, 3.1%, 3.2%, 3.3%, 3.4%, 3.5%, 3.6%, 3.7%, 3.8%, 3.9%, 4%, 4.1%, 4.2%, 4.3%, 4.4%, 4.5%, 4.6%, 4.7%, 4.8%, 4.9%, 5% of P2O5.

[0134] In some embodiments, controlling the ratio (Al2O3 + Li2O) / P2O5 between the total content of Al2O3 and Li2O (Al2O3 + Li2O) and the content of P2O5 within the range of 5.0 to 45.0 is beneficial to improving the four-point bending strength and drop resistance of the glass-ceramics and glass-ceramic products, and enhancing the surface stress of the glass-ceramic products. Therefore, it is preferred that (Al2O3 + Li2O) / P2O5 is 5.0 to 45.0, more preferably (Al2O3 + Li2O) / P2O5 is 7.0 to 35.0, further preferably (Al2O3 + Li2O) / P2O5 is 8.0 to 30.0, and even more preferably (Al2O3 + Li2O) / P2O5 is 10.0 to 25.0. In some embodiments, (Al2O3 + Li2O) / P2O5 is 5.0, 5.5, 6.0, 6.5, 7.0, 7.5, 8.0, 8.5, 9.0, 9.5, 10.0, 10.5, 11.0, 11.5, 12.0, 12.5, 13.0, 13.5, 14.0, 14.5, 15.0, 15.5, 16.0, 16.5, 17.0, 17.5, 18.0, 18.5, 19.0, 19.5, 20.0, 20.5, 21.0, 21.5, 22.0, 22.5, 23.0, 23.5, 24.0, 24.5, 25.0, 26.0, 27.0, 28.0, 29.0, 30.0, 31.0, 32.0, 33.0, 34.0, 35.0, 36.0, 37.0, 38.0, 39.0, 40.0, 41.0, 42.0, 43.0, 44.0, 45.0.

[0135] In some embodiments, controlling the total content of P2O5 and ZrO2, i.e., P2O5+ZrO2, within the range of 0 to 8% is beneficial for the glass-ceramics and glass-ceramic products to obtain uniform crystal grains and smaller crystal grain sizes, and optimize the transmittance of the glass-ceramics and glass-ceramic products. Therefore, it is preferred that P2O5+ZrO2 is 0 to 8%, more preferably P2O5+ZrO2 is 0.1 to 7%, and further preferably P2O5+ZrO2 is 0.5 to 5%. In some embodiments, P2O5+ZrO2 is 0%, greater than 0%, 0.01%, 0.05%, 0.1%, 0.2%, 0.3%, 0.4%, 0.5%, 0.6%, 0.7%, 0.8%, 0.9%, 1%, 1.1%, 1.2%, 1.3%, 1.4%, 1.5%, 1.6%, 1.7%, 1.8%, 1.9%, 2%, 2.1%, 2.2%, 2.3%, 2.4%, 2.5%, 2.6%, 2.7%, 2.8%, 2.9%, 3%, 3.1%, 3.2%, 3.3%, 3.4%, 3.5%, 3.6%, 3.7%, 3.8%, 3.9%, 4%, 4.1%, 4.2%, 4.3%, 4.4%, 4.5%, 4.6%, 4.7%, 4.8%, 4.9%, 5%, 5.1%, 5.2%, 5.3%, 5.4%, 5.5%, 5.6%, 5.7%, 5.8%, 5.9%, 6%, 6.1%, 6.2%, 6.3%, 6.4%, 6.5%, 6.6%, 6.7%, 6.8%, 6.9%, 7%, 7.1%, 7.2%, 7.3%, 7.4%, 7.5%, 7.6%, 7.7%, 7.8%, 7.9%, 8%.

[0136] In some embodiments, controlling the ratio P2O5 / ZrO2 of the content of P2O5 to the content of ZrO2 within the range of 0.1 to 5.0 is beneficial to improving the hardness and fracture toughness of the glass-ceramics and glass-ceramic products and preventing the drop resistance and Young's modulus from deteriorating. Therefore, it is preferred that P2O5 / ZrO2 is 0.1 to 5.0, more preferably P2O5 / ZrO2 is 0.2 to 3.0, further preferably P2O5 / ZrO2 is 0.5 to 2.0, and still further preferably P2O5 / ZrO2 is 0.6 to 1.5. In some embodiments, P2O5 / ZrO2 is 0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9, 1.0, 1.1, 1.2, 1.3, 1.4, 1.5, 1.6, 1.7, 1.8, 1.9, 2.0, 2.1, 2.2, 2.3, 2.4, 2.5, 2.6, 2.7, 2.8, 2.9, 3.0, 3.1, 3.2, 3.3, 3.4, 3.5, 3.6, 3.7, 3.8, 3.9, 4.0, 4.1, 4.2, 4.3, 4.4, 4.5, 4.6, 4.7, 4.8, 4.9, 5.0.

[0137] MgO helps to reduce the viscosity of the glass, inhibits glass crystallization during forming and refines the crystal grains during crystallization, and also has the effect of improving the low-temperature fusibility. In some embodiments, MgO has the function of promoting the formation of the quartz solid solution crystal phase. If the content of MgO is too high, the quartz solid solution crystal phase is likely to be formed during glass crystallization, and the crystal grains of the quartz solid solution crystal phase are relatively large, which will reduce the transmittance of the glass-ceramics and glass-ceramic products. Therefore, the content of MgO is 0.1 to 6%, preferably 1 to 5%, and more preferably 2 to 4%. In some embodiments, it may contain about 0.1%, 0.2%, 0.3%, 0.4%, 0.5%, 0.6%, 0.7%, 0.8%, 0.9%, 1%, 1.1%, 1.2%, 1.3%, 1.4%, 1.5%, 1.6%, 1.7%, 1.8%, 1.9%, 2%, 2.1%, 2.2%, 2.3%, 2.4%, 2.5%, 2.6%, 2.7%, 2.8%, 2.9%, 3%, 3.1%, 3.2%, 3.3%, 3.4%, 3.5%, 3.6%, 3.7%, 3.8%, 3.9%, 4%, 4.1%, 4.2%, 4.3%, 4.4%, 4.5%, 4.6%, 4.7%, 4.8%, 4.9%, 5%, 5.1%, 5.2%, 5.3%, 5.4%, 5.5%, 5.6%, 5.7%, 5.8%, 5.9%, 6% of MgO.

[0138] In some embodiments, the ratio of the total content of Li2O and MgO, Li2O + MgO, to the content of TiO2, (Li2O + MgO) / TiO2, is in the range of 0.3 to 8.0, which can refine the grains, improve the transmittance and drop resistance of the glass-ceramics and glass-ceramic products, and optimize the haze and |B| value of the glass-ceramics and glass-ceramic products. Therefore, it is preferred that (Li2O + MgO) / TiO2 is 0.3 to 8.0, more preferably (Li2O + MgO) / TiO2 is 0.5 to 5.0, further preferably (Li2O + MgO) / TiO2 is 1.0 to 3.0, and still more preferably (Li2O + MgO) / TiO2 is 1.2 to 2.5. In some embodiments, (Li2O + MgO) / TiO2 is 0.3, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9, 1.0, 1.1, 1.2, 1.3, 1.4, 1.5, 1.6, 1.7, 1.8, 1.9, 2.0, 2.1, 2.2, 2.3, 2.4, 2.5, 2.6, 2.7, 2.8, 2.9, 3.0, 3.1, 3.2, 3.3, 3.4, 3.5, 3.6, 3.7, 3.8, 3.9, 4.0, 4.1, 4.2, 4.3, 4.4, 4.5, 4.6, 4.7, 4.8, 4.9, 5.0, 5.1, 5.2, 5.3, 5.4, 5.5, 5.6, 5.7, 5.8, 5.9, 6.0, 6.1, 6.2, 6.3, 6.4, 6.5, 6.6, 6.7, 6.8, 6.9, 7.0, 7.1, 7.2, 7.3, 7.4, 7.5, 7.6, 7.7, 7.8, 7.9, 8.0.

[0139] In some embodiments, controlling the ratio Al2O3 / (MgO + TiO2) between the content of Al2O3 and the total content of MgO and TiO2, i.e., MgO + TiO2, within the range of 1.3 to 10.0 is beneficial to improving the hardness and ball-drop test height of the glass-ceramics and glass-ceramic products, and optimizing the surface stress and haze of the glass-ceramic products. Therefore, it is preferred that Al2O3 / (MgO + TiO2) is 1.3 to 10.0, more preferably Al2O3 / (MgO + TiO2) is 1.5 to 8.0, further preferably Al2O3 / (MgO + TiO2) is 2.5 to 6.5, and even more preferably Al2O3 / (MgO + TiO2) is 3.0 to 5.5. In some embodiments, Al2O3 / (MgO + TiO2) is 1.3, 1.4, 1.5, 1.6, 1.7, 1.8, 1.9, 2.0, 2.1, 2.2, 2.3, 2.4, 2.5, 2.6, 2.7, 2.8, 2.9, 3.0, 3.1, 3.2, 3.3, 3.4, 3.5, 3.6, 3.7, 3.8, 3.9, 4.0, 4.1, 4.2, 4.3, 4.4, 4.5, 4.6, 4.7, 4.8, 4.9, 5.0, 5.1, 5.2, 5.3, 5.4, 5.5, 5.6, 5.7, 5.8, 5.9, 6.0, 6.1, 6.2, 6.3, 6.4, 6.5, 6.6, 6.7, 6.8, 6.9, 7.0, 7.1, 7.2, 7.3, 7.4, 7.5, 7.6, 7.7, 7.8, 7.9, 8.0, 8.1, 8.2, 8.3, 8.4, 8.5, 8.6, 8.7, 8.8, 8.9, 9.0, 9.1, 9.2, 9.3, 9.4, 9.5, 9.6, 9.7, 9.8, 9.9, 10.0.

[0140] B2O3 contributes to the melting of glass and improves the melting effect of glass. If the content of B2O3 is too high, the chemical stability of the glass deteriorates, boron anomaly is prone to occur, the structure of boron-oxygen tetrahedron transforms into boron-oxygen triangle structure, and the viscosity of the glass decreases. In addition, boron volatilization easily forms streaks, resulting in non-uniform glass. Therefore, the content of B2O3 is 0-4%, preferably 0-2%, and more preferably 0-1%. In some embodiments, it may contain about 0%, greater than 0%, 0.01%, 0.05%, 0.1%, 0.2%, 0.3%, 0.4%, 0.5%, 0.6%, 0.7%, 0.8%, 0.9%, 1%, 1.1%, 1.2%, 1.3%, 1.4%, 1.5%, 1.6%, 1.7%, 1.8%, 1.9%, 2%, 2.1%, 2.2%, 2.3%, 2.4%, 2.5%, 2.6%, 2.7%, 2.8%, 2.9%, 3%, 3.1%, 3.2%, 3.3%, 3.4%, 3.5%, 3.6%, 3.7%, 3.8%, 3.9%, 4% of B2O3.

[0141] Na2O can promote the melting of glass and improve the chemical strengthening performance of glass-ceramics. However, in the present invention, if too much Na2O is contained, it is easy to cause more broken bonds in the glass, resulting in a decrease in the strength of the matrix glass, which instead affects the strength of the glass-ceramics and glass-ceramic products. Therefore, the upper limit of the Na2O content in the present invention is 6%, preferably the upper limit is 4%, and more preferably the upper limit is 2%. In some embodiments, it may contain about 0%, greater than 0%, 0.01%, 0.05%, 0.1%, 0.2%, 0.3%, 0.4%, 0.5%, 0.6%, 0.7%, 0.8%, 0.9%, 1%, 1.1%, 1.2%, 1.3%, 1.4%, 1.5%, 1.6%, 1.7%, 1.8%, 1.9%, 2%, 2.1%, 2.2%, 2.3%, 2.4%, 2.5%, 2.6%, 2.7%, 2.8%, 2.9%, 3%, 3.1%, 3.2%, 3.3%, 3.4%, 3.5%, 3.6%, 3.7%, 3.8%, 3.9%, 4%, 4.1%, 4.2%, 4.3%, 4.4%, 4.5%, 4.6%, 4.7%, 4.8%, 4.9%, 5%, 5.1%, 5.2%, 5.3%, 5.4%, 5.5%, 5.6%, 5.7%, 5.8%, 5.9%, 6% of Na2O.

[0142] In some embodiments, the ratio (SiO2+Na2O) / ZnO between the total content of SiO2 and Na2O, i.e., SiO2+Na2O, and the content of ZnO is controlled within the range of 2.2 to 6.2. While improving the fracture toughness and extrusion resistance of the glass-ceramics and glass-ceramic products, the ∣B∣ value can be optimized. Therefore, it is preferred that (SiO2+Na2O) / ZnO is 2.2 to 6.2, more preferably (SiO2+Na2O) / ZnO is 2.5 to 6.0, further preferably (SiO2+Na2O) / ZnO is 2.8 to 5.5, and even more preferably (SiO2+Na2O) / ZnO is 3.0 to 5.0. In some embodiments, (SiO2+Na2O) / ZnO is 2.2, 2.3, 2.4, 2.5, 2.6, 2.7, 2.8, 2.9, 3.0, 3.1, 3.2, 3.3, 3.4, 3.5, 3.6, 3.7, 3.8, 3.9, 4.0, 4.1, 4.2, 4.3, 4.4, 4.5, 4.6, 4.7, 4.8, 4.9, 5.0, 5.1, 5.2, 5.3, 5.4, 5.5, 5.6, 5.7, 5.8, 5.9, 6.0, 6.1, 6.2.

[0143] K2O helps to reduce the glass melting temperature, is beneficial for chemical strengthening, and can increase the depth of the ion exchange layer of the glass-ceramic products. However, if it contains too much K2O, it is very easy to cause a decrease in the chemical stability of the glass and a decrease in hardness. Therefore, the content of K2O is 3% or less, preferably 2% or less, and more preferably 1% or less. In some embodiments, it may contain about 0%, greater than 0%, 0.01%, 0.05%, 0.1%, 0.2%, 0.3%, 0.4%, 0.5%, 0.6%, 0.7%, 0.8%, 0.9%, 1%, 1.1%, 1.2%, 1.3%, 1.4%, 1.5%, 1.6%, 1.7%, 1.8%, 1.9%, 2%, 2.1%, 2.2%, 2.3%, 2.4%, 2.5%, 2.6%, 2.7%, 2.8%, 2.9%, 3% of K2O.

[0144] In some embodiments, the ratio (Na2O + K2O) / ZnO between the total content of Na2O and K2O and the content of ZnO is controlled to be below 0.8, which can refine the grains, reduce the grain size of the glass-ceramics and glass-ceramic products, improve the transmittance and extrusion resistance of the glass-ceramics and glass-ceramic products, and optimize the haze of the glass-ceramics and glass-ceramic products. Therefore, it is preferred that (Na2O + K2O) / ZnO is below 0.8, more preferably (Na2O + K2O) / ZnO is below 0.6, further preferably (Na2O + K2O) / ZnO is below 0.4, and even more preferably (Na2O + K2O) / ZnO is below 0.2. In some embodiments, (Na2O + K2O) / ZnO is 0, greater than 0, 0.01, 0.02, 0.03, 0.04, 0.05, 0.06, 0.07, 0.08, 0.09, 0.1, 0.15, 0.2, 0.25, 0.3, 0.35, 0.4, 0.45, 0.5, 0.55, 0.6, 0.65, 0.7, 0.75, 0.8.

[0145] CaO, BaO, and SrO do not participate in the formation of the crystal phase as fluxes and are retained in the residual glass phase of the glass-ceramics, which is beneficial to reducing the melting temperature and processing temperature. However, too high a content will damage the nucleation and crystallization during the process of the matrix glass transforming into glass-ceramics, and have an adverse effect on the chemical stability of the glass-ceramics. Therefore, the total content of CaO, BaO, and SrO, CaO + BaO + SrO, is 0 to 5%, preferably 0 to 4%, and more preferably 0 to 2%. In some embodiments, CaO + BaO + SrO is 0%, greater than 0%, 0.01%, 0.05%, 0.1%, 0.2%, 0.3%, 0.4%, 0.5%, 0.6%, 0.7%, 0.8%, 0.9%, 1%, 1.1%, 1.2%, 1.3%, 1.4%, 1.5%, 1.6%, 1.7%, 1.8%, 1.9%, 2%, 2.1%, 2.2%, 2.3%, 2.4%, 2.5%, 2.6%, 2.7%, 2.8%, 2.9%, 3%, 3.1%, 3.2%, 3.3%, 3.4%, 3.5%, 3.6%, 3.7%, 3.8%, 3.9%, 4%, 4.1%, 4.2%, 4.3%, 4.4%, 4.5%, 4.6%, 4.7%, 4.8%, 4.9%, 5%.

[0146] Y2O3 can promote the melting of ZrO2, reduce the melting difficulty of the glass. When the content is excessive, it will cause difficulties in forming crystals during the crystallization of the glass, and the height of the ball-drop test of the glass-ceramics and glass-ceramic products will decrease. Therefore, the upper limit of the Y2O3 content is 6%, preferably the upper limit is 4%, and more preferably the upper limit is 2%. In some embodiments, it may contain about 0%, greater than 0%, 0.01%, 0.05%, 0.1%, 0.2%, 0.3%, 0.4%, 0.5%, 0.6%, 0.7%, 0.8%, 0.9%, 1%, 1.1%, 1.2%, 1.3%, 1.4%, 1.5%, 1.6%, 1.7%, 1.8%, 1.9%, 2%, 2.1%, 2.2%, 2.3%, 2.4%, 2.5%, 2.6%, 2.7%, 2.8%, 2.9%, 3%, 3.1%, 3.2%, 3.3%, 3.4%, 3.5%, 3.6%, 3.7%, 3.8%, 3.9%, 4%, 4.1%, 4.2%, 4.3%, 4.4%, 4.5%, 4.6%, 4.7%, 4.8%, 4.9%, 5%, 5.1%, 5.2%, 5.3%, 5.4%, 5.5%, 5.6%, 5.7%, 5.8%, 5.9%, 6% of Y2O3.

[0147] In some embodiments, the glass, glass-ceramics or glass-ceramic products may further contain 0-2% of a clarifying agent to improve the defoaming ability of the glass, glass-ceramics or glass-ceramic products. Such clarifying agents include, but are not limited to, one or more of Sb2O3, SnO2, SnO, CeO2, F (fluorine) compounds, Cl (chlorine) compounds and Br (bromine) compounds, and Sb2O3 is preferably used as the clarifying agent. When the above-mentioned clarifying agents are present alone or in combination, the upper limit of their content is preferably 2%, more preferably the upper limit is 1%, and even more preferably the upper limit is 0.5%. In some embodiments, the content of one or more of the clarifying agents is about 0%, greater than 0%, 0.01%, 0.05%, 0.1%, 0.2%, 0.3%, 0.4%, 0.5%, 0.6%, 0.7%, 0.8%, 0.9%, 1%, 1.1%, 1.2%, 1.3%, 1.4%, 1.5%, 1.6%, 1.7%, 1.8%, 1.9%, 2%.

[0148] Without affecting the properties of the glass, glass-ceramics or glass-ceramic products of the present invention, other components not mentioned above, such as La2O3, Gd2O3, Yb2O3, Nb2O5, WO3, Bi2O3, Ta2O5, TeO2, etc., can be appropriately added. However, to maintain the excellent properties of the glass, glass-ceramics or glass-ceramic products of the present invention, the respective content or the total content of La2O3, Gd2O3, Yb2O3, Nb2O5, WO3, Bi2O3, Ta2O5, TeO2 is preferably 5% or less, more preferably 2% or less, further preferably 1% or less, and still more preferably not contained.

[0149] PbO and As2O3 are toxic substances, and even a small amount of them does not meet the environmental protection requirements. Therefore, in some embodiments of the present invention, PbO and / or As2O3 are preferably not contained.

[0150] In some embodiments of the present invention, by containing a colorant, a matrix glass, glass-ceramics or glass-ceramic products with colors can be prepared, which can make the matrix glass, glass-ceramics or glass-ceramic products present different colors. The colorant contains: NiO: 0-4%; and / or Ni2O3: 0-4%; and / or CoO: 0-2%; and / or Co2O3: 0-2%; and / or Fe2O3: 0-7%; and / or MnO2: 0-4%; and / or Er2O3: 0-8%; and / or Nd2O3: 0-8%; and / or Cu2O: 0-4%; and / or Pr2O5: 0-8%; and / or CeO2: 0-4%. The weight percentage content and its function of the colorant are described in detail as follows:

[0151] The brown or green matrix glass, glass-ceramics or glass-ceramic products prepared by the present invention use NiO, Ni₂O₃ or Pr₂O₅ as colorants. NiO and Ni₂O₃ are used as colorants for preparing brown or green matrix glass, glass-ceramics or glass-ceramic products. The two components can be used alone or in combination. Their respective contents are generally below 4%, preferably below 3%. If the content exceeds 4%, the colorants cannot be well dissolved in the matrix glass, glass-ceramics or glass-ceramic products. The lower limit of their respective contents is above 0.1%. If it is lower than 0.1%, the color of the matrix glass, glass-ceramics or glass-ceramic products is not obvious. In some embodiments, it may contain about 0.1%, 0.2%, 0.3%, 0.4%, 0.5%, 0.6%, 0.7%, 0.8%, 0.9%, 1.0%, 1.1%, 1.2%, 1.3%, 1.4%, 1.5%, 1.6%, 1.7%, 1.8%, 1.9%, 2.0%, 2.1%, 2.2%, 2.3%, 2.4%, 2.5%, 2.6%, 2.7%, 2.8%, 2.9%, 3.0%, 3.1%, 3.2%, 3.3%, 3.4%, 3.5%, 3.6%, 3.7%, 3.8%, 3.9%, 4.0% of NiO or Ni₂O₃. When used in combination, the total amount of NiO and Ni₂O₃ is generally below 4%, and the lower limit of the total amount is above 0.1%. In some embodiments, it may contain about 0.1%, 0.2%, 0.3%, 0.4%, 0.5%, 0.6%, 0.7%, 0.8%, 0.9%, 1.0%, 1.1%, 1.2%, 1.3%, 1.4%, 1.5%, 1.6%, 1.7%, 1.8%, 1.9%, 2.0%, 2.1%, 2.2%, 2.3%, 2.4%, 2.5%, 2.6%, 2.7%, 2.8%, 2.9%, 3.0%, 3.1%, 3.2%, 3.3%, 3.4%, 3.5%, 3.6%, 3.7%, 3.8%, 3.9%, 4.0% of NiO and Ni₂O₃. Using Pr₂O₅ as the colorant for green matrix glass, glass-ceramics or glass-ceramic products, used alone, the content is generally below 8%, preferably below 6%. The lower limit of its content is above 0.4%. If it is lower than 0.4%, the color of the matrix glass, glass-ceramics or glass-ceramic products is not obvious.In some embodiments, it may contain about 0.4%, 0.6%, 0.8%, 1.0%, 1.2%, 1.4%, 1.6%, 1.8%, 2.0%, 2.2%, 2.4%, 2.6%, 2.8%, 3.0%, 3.2%, 3.4%, 3.6%, 3.8%, 4.0%, 4.2%, 4.4%, 4.6%, 4.8%, 5.0%, 5.2%, 5.4%, 5.6%, 5.8%, 6.0%, 6.2%, 6.4%, 6.6%, 6.8%, 7.0%, 7.2%, 7.4%, 7.6%, 7.8%, 8.0% of Pr2O5.

[0152] For the blue matrix glass, glass-ceramics or glass-ceramic products prepared by the present invention, CoO or Co2O3 is used as a colorant. The two colorant components can be used alone or in combination. Their respective contents are generally below 2%, preferably below 1.8%. If the content exceeds 2%, the colorant cannot dissolve well in the matrix glass, glass-ceramics or glass-ceramic products. The lower limit of their respective contents is above 0.05%. If it is lower than 0.05%, the color of the matrix glass, glass-ceramics or glass-ceramic products is not obvious. In some embodiments, it may contain about 0.05%, 0.1%, 0.2%, 0.3%, 0.4%, 0.5%, 0.6%, 0.7%, 0.8%, 0.9%, 1.0%, 1.1%, 1.2%, 1.3%, 1.4%, 1.5%, 1.6%, 1.7%, 1.8%, 1.9%, 2.0% of CoO or Co2O3. When used in combination, the total amount of CoO and Co2O3 does not exceed 2%, and the lower limit of the total amount is above 0.05%. In some embodiments, it may contain about 0.05%, 0.1%, 0.2%, 0.3%, 0.4%, 0.5%, 0.6%, 0.7%, 0.8%, 0.9%, 1.0%, 1.1%, 1.2%, 1.3%, 1.4%, 1.5%, 1.6%, 1.7%, 1.8%, 1.9%, 2.0% of CoO and Co2O3.

[0153] The yellow matrix glass, glass-ceramics or glass-ceramic products prepared by the present invention use Cu2O or CeO2 as colorants. The two colorant components can be used alone or in combination. The lower limit of their respective contents is above 0.5%. If it is lower than 0.5%, the color of the matrix glass, glass-ceramics or glass-ceramic products is not obvious. When using Cu2O alone, it is 4% or less, preferably 3% or less. If the content exceeds 4%, it is easy for the matrix glass to crystallize. In some embodiments, it may contain about 0.5%, 0.6%, 0.7%, 0.8%, 0.9%, 1.0%, 1.1%, 1.2%, 1.3%, 1.4%, 1.5%, 1.6%, 1.7%, 1.8%, 1.9%, 2.0%, 2.1%, 2.2%, 2.3%, 2.4%, 2.5%, 2.6%, 2.7%, 2.8%, 2.9%, 3.0%, 3.1%, 3.2%, 3.3%, 3.4%, 3.5%, 3.6%, 3.7%, 3.8%, 3.9%, 4.0% of Cu2O. When using CeO2 alone, the content is generally 4% or less, preferably 3% or less. If the content exceeds 4%, the gloss of the matrix glass, glass-ceramics or glass-ceramic products is not good. In some embodiments, it may contain about 0.5%, 0.6%, 0.7%, 0.8%, 0.9%, 1.0%, 1.1%, 1.2%, 1.3%, 1.4%, 1.5%, 1.6%, 1.7%, 1.8%, 1.9%, 2.0%, 2.1%, 2.2%, 2.3%, 2.4%, 2.5%, 2.6%, 2.7%, 2.8%, 2.9%, 3.0%, 3.1%, 3.2%, 3.3%, 3.4%, 3.5%, 3.6%, 3.7%, 3.8%, 3.9%, 4.0% of CeO2. At the same time, adding a small amount of CeO2 to the glass has a defoaming effect. CeO2 can also be used as a fining agent in the glass. When used as a fining agent, its content is 2% or less, preferably 1% or less, more preferably 0.5% or less. If the two colorants are used in combination, the total amount is generally 4% or less, and the lower limit of the total amount is above 0.5%. In some embodiments, it may contain about 0.5%, 0.6%, 0.7%, 0.8%, 0.9%, 1.0%, 1.1%, 1.2%, 1.3%, 1.4%, 1.5%, 1.6%, 1.7%, 1.8%, 1.9%, 2.0%, 2.1%, 2.2%, 2.3%, 2.4%, 2.5%, 2.6%, 2.7%, 2.8%, 2.9%, 3.0%, 3.1%, 3.2%, 3.3%, 3.4%, 3.5%, 3.6%, 3.7%, 3.8%, 3.9%, 4.0% of CeO2 and Cu2O.

[0154] The black or smoky gray matrix glass, glass-ceramics or glass-ceramic products prepared by the present invention use Fe2O3 alone as the colorant; or use a combination of Fe2O3 and CoO as the colorants; or use a combination of Fe2O3 and Co2O3 as the colorants; or use a combination of Fe2O3, CoO and NiO as the colorants; or use a combination of Fe2O3, Co2O3 and NiO as the colorants. The colorant for preparing black and smoky gray matrix glass, glass-ceramics or glass-ceramic products mainly uses Fe2O3 for coloring, with a content of less than 7%, preferably less than 5%, and the lower limit of its content is above 0.2%. In some embodiments, it may contain about 0.2%, 0.3%, 0.4%, 0.5%, 0.6%, 0.7%, 0.8%, 0.9%, 1.0%, 1.1%, 1.2%, 1.3%, 1.4%, 1.5%, 1.6%, 1.7%, 1.8%, 1.9%, 2.0%, 2.1%, 2.2%, 2.3%, 2.4%, 2.5%, 2.6%, 2.7%, 2.8%, 2.9%, 3.0%, 3.1%, 3.2%, 3.3%, 3.4%, 3.5%, 3.6%, 3.7%, 3.8%, 3.9%, 4.0%, 4.5%, 5.0%, 5.5%, 6.0%, 6.5%, 7.0% of Fe2O3. CoO and Co2O3 have absorption in the visible light, which can deepen the coloring degree of the matrix glass, glass-ceramics or glass-ceramic products. Generally, when used in combination with Fe2O3, their respective contents are below 0.6%, and the lower limit is above 0.2%. In some embodiments, it may contain about 0.2%, 0.3%, 0.4%, 0.5%, 0.6% of CoO and / or Co2O3. NiO has absorption in the visible light, which can deepen the coloring degree of the matrix glass, glass-ceramics or glass-ceramic products. Generally, when used in combination, its content is below 1%, and the lower limit of the total content is above 0.2%. In some embodiments, it may contain about 0.2%, 0.3%, 0.4%, 0.5%, 0.6%, 0.7%, 0.8%, 0.9%, 1.0% of NiO.

[0155] The purple matrix glass, glass-ceramics or glass-ceramic products prepared by the present invention use MnO2 as a colorant, and the content is generally 4% or less, preferably 3% or less, and the lower limit of the content is above 0.1%. If it is less than 0.1%, the color of the matrix glass, glass-ceramics or glass-ceramic products is not obvious. In some embodiments, it may contain about 0.1%, 0.2%, 0.3%, 0.4%, 0.5%, 0.6%, 0.7%, 0.8%, 0.9%, 1.0%, 1.1%, 1.2%, 1.3%, 1.4%, 1.5%, 1.6%, 1.7%, 1.8%, 1.9%, 2.0%, 2.1%, 2.2%, 2.3%, 2.4%, 2.5%, 2.6%, 2.7%, 2.8%, 2.9%, 3.0%, 3.1%, 3.2%, 3.3%, 3.4%, 3.5%, 3.6%, 3.7%, 3.8%, 3.9%, 4.0% of MnO2.

[0156] The pink matrix glass, glass-ceramics or glass-ceramic products prepared by the present invention use Er2O3 as a colorant, and the content is generally 8% or less, preferably 6% or less. Due to the low coloring efficiency of the rare earth element Er2O3, when the content exceeds 8%, the color of the matrix glass, glass-ceramics or glass-ceramic products cannot be further deepened, but the cost is increased. The lower limit of the content is above 0.4%. If it is less than 0.4%, the color of the matrix glass, glass-ceramics or glass-ceramic products is not obvious. In some embodiments, it may contain about 0.4%, 0.6%, 0.8%, 1.0%, 1.2%, 1.4%, 1.6%, 1.8%, 2.0%, 2.2%, 2.4%, 2.6%, 2.8%, 3.0%, 3.2%, 3.4%, 3.6%, 3.8%, 4.0%, 4.2%, 4.4%, 4.6%, 4.8%, 5.0%, 5.2%, 5.4%, 5.6%, 5.8%, 6.0%, 6.2%, 6.4%, 6.6%, 6.8%, 7.0%, 7.2%, 7.4%, 7.6%, 7.8%, 8.0% of Er2O3.

[0157] The purple-red matrix glass, glass-ceramics or glass-ceramic products prepared by the present invention use Nd2O3 as a colorant, and the content is generally 8% or less, preferably 6% or less. Since the rare earth element Nd2O3 has a low coloring efficiency, if the content exceeds 8%, the color of the matrix glass, glass-ceramics or glass-ceramic products cannot be further deepened, but the cost is increased. The lower limit of its content is above 0.4%. If it is lower than 0.4%, the color of the matrix glass, glass-ceramics or glass-ceramic products is not obvious. In some embodiments, it may contain about 0.4%, 0.6%, 0.8%, 1.0%, 1.2%, 1.4%, 1.6%, 1.8%, 2.0%, 2.2%, 2.4%, 2.6%, 2.8%, 3.0%, 3.2%, 3.4%, 3.6%, 3.8%, 4.0%, 4.2%, 4.4%, 4.6%, 4.8%, 5.0%, 5.2%, 5.4%, 5.6%, 5.8%, 6.0%, 6.2%, 6.4%, 6.6%, 6.8%, 7.0%, 7.2%, 7.4%, 7.6%, 7.8%, 8.0% of Nd2O3.

[0158] The red matrix glass, glass-ceramics or glass-ceramic products prepared by the present invention use a mixed colorant of Er2O3, Nd2O3 and MnO2. Er ions in the glass have absorption at 400-500 nm, Mn ions mainly have absorption at 500 nm, and Nd ions mainly have strong absorption at 580 nm. The mixture of these three substances can be used to prepare red matrix glass, glass-ceramics or glass-ceramic products. Since Er2O3 and Nd2O3 are rare earth colorants with relatively weak coloring ability, the usage amount of Er2O3 is within 6%, the usage amount of Nd2O3 is within 4%, and MnO2 has strong coloring ability with a usage amount within 2%. The lower limit of the total amount of the mixed colorant used is above 0.9%.

[0159] As used herein, "not containing" and "0%" mean that the compound, molecule or element, etc. is not intentionally added as a raw material to the matrix glass, glass-ceramics or glass-ceramic products of the present invention; however, as raw materials and / or equipment for producing matrix glass, glass-ceramics or glass-ceramic products, there may be certain impurities or components that are not intentionally added and will be contained in trace amounts or in small amounts in the final matrix glass, glass-ceramics or glass-ceramic products. Such a situation is also within the scope of protection of this invention patent.

[0160] In some embodiments of the present invention, the glass-ceramics and glass-ceramic products contain a spinel crystal phase, which provides high strength for the glass-ceramics and glass-ceramic products of the present invention, and the fracture toughness of the glass-ceramics and glass-ceramic products becomes higher; the ball-drop height of the glass-ceramics body and the ball-drop test height and four-point bending strength of the glass-ceramic products become larger. The glass-ceramics of the present invention have excellent chemical strengthening performance and can also be processed by a chemical strengthening process to obtain excellent mechanical strength. Through reasonable component design, the glass-ceramics and glass-ceramic products of the present invention can obtain appropriate grain sizes, so that the glass-ceramics and glass-ceramic products of the present invention have high strength.

[0161] The grain size and crystal phase type in the glass-ceramics or glass-ceramic products of the present invention will affect the haze and light transmittance of the glass-ceramics or glass-ceramic products. The smaller the grain size, the higher the light transmittance; the smaller the haze, the higher the light transmittance. In some embodiments, the haze of the glass-ceramic products or glass-ceramics with a thickness of less than 1 mm is 0.3% or less, preferably 0.25% or less, and more preferably 0.05 - 0.2%. In some embodiments, the grain size of the glass-ceramic products or glass-ceramics is 60 nm or less, preferably 45 nm or less, and more preferably 10 - 30 nm.

[0162] In some embodiments, the crystal phase content and refractive index in the glass-ceramics or glass-ceramic products of the present invention affect the |B| value of the glass-ceramics or glass-ceramic products. When observing the glass-ceramics or glass-ceramic products in the visible light range, they appear bluish or yellowish, which affects the optical properties of the products and is indicated by the |B| value in the LAB (chromaticity value of the color of substances). The glass-ceramics or glass-ceramic products of the present invention exhibit a low |B| value in the visible light range. In some embodiments, the average light |B| value of the glass-ceramic products or glass-ceramics with a thickness of less than 1 mm in the range of 400 - 800 nm is 1.0 or less, preferably 0.8 or less, and more preferably 0.3 - 0.6.

[0163] In some embodiments, the glass-ceramics or glass-ceramic products of the present invention exhibit high transparency in the visible light range (i.e., the glass-ceramics or glass-ceramic products are transparent). The glass-ceramics or glass-ceramic products exhibit high light transmittance in the visible light range. In some embodiments, the average light transmittance of the glass-ceramic products or glass-ceramics with a thickness of less than 1 mm in the range of 400 - 800 nm is preferably 87.0% or more, more preferably 88.5% or more, and further preferably 89.5% or more. In some preferred embodiments, the light transmittance of the glass-ceramic products or glass-ceramics with a thickness of less than 1 mm at 550 nm is preferably 87.0% or more, more preferably 88.0% or more, and further preferably 89.0% or more.

[0164] In some embodiments, an antimicrobial component can be added to a base glass, a glass-ceramic, or a glass-ceramic article. The glass-ceramics or glass-ceramic articles described herein can be used, for example, in applications such as kitchen or dining worktops, where exposure to harmful bacteria is likely. The antimicrobial components contained in the base glass, glass-ceramic, or glass-ceramic article include, but are not limited to, Ag, AgO, Cu, CuO, Cu2O, etc. In some embodiments, the content of the above antimicrobial components, alone or in combination, is 2% or less, preferably 1% or less.

[0165] The base glass, glass-ceramic, and glass-ceramic article of the present invention can be produced and manufactured by the following methods:

[0166] Generating the base glass: Mix the raw materials (oxides, hydroxides, complex salts, etc.) evenly according to the component ratio, and then put them into a crucible (such as a platinum or quartz crucible). Depending on the melting difficulty of the glass composition, melt them in an electric furnace or a gas furnace within a temperature range of 1350 - 1550 °C for 5 - 24 hours. The preferred melting temperature is 1450 - 1550 °C; then obtain the base glass after clarification, homogenization, forming, and annealing. The preferred clarification temperature is greater than 1550 °C but less than or equal to 1650 °C, and the preferred annealing temperature is 450 - 600 °C.

[0167] The base glass of the present invention can be formed by well-known methods.

[0168] The base glass of the present invention is subjected to a crystallization treatment through a crystallization process after forming or forming processing, and crystals are precipitated uniformly inside the glass to form a glass-ceramic. This crystallization treatment can be carried out in one stage or two stages. Preferably, the crystallization treatment is carried out in two stages. The two-stage crystallization treatment is to carry out a nucleation process treatment at a first temperature and then a crystal growth process treatment at a second temperature. The crystallization treatment carried out at the first temperature is called the first crystallization treatment, and the crystallization treatment carried out at the second temperature is called the second crystallization treatment.

[0169] In order to endow the glass-ceramic with the desired physical and chemical properties, the preferred crystallization process is:

[0170] The above crystallization treatment carried out in one stage can continuously carry out the nucleation process and the crystal growth process. That is, heat up to the specified crystallization treatment temperature. After reaching the crystallization treatment temperature, keep the temperature for a certain period of time, and then cool down. The preferred crystallization treatment temperature is 600 - 800 °C, and in order to be able to precipitate the desired crystal phase, it is more preferably 650 - 750 °C. The holding time at the crystallization treatment temperature is preferably 1 - 10 hours, and more preferably 3 - 6 hours.

[0171] When the crystallization treatment is carried out in two stages as described above, the first temperature is preferably 600 to 700 °C, the second temperature is preferably greater than 700 °C but less than or equal to 800 °C, the holding time at the first temperature is preferably 1 to 6 hours, and the holding time at the second temperature is preferably 2 to 5 hours.

[0172] In some embodiments, the vitreous matrix or glass-ceramics described herein can be formed into a shaped body by various processes, the shaped body including but not limited to sheets, and the processes including but not limited to slot drawing, the float process, roll pressing, and other processes for forming sheets known in the art. Alternatively, the vitreous matrix or glass-ceramics can be formed by the float process or roll pressing process known in the art. The shaped bodies of the present invention also include lenses, prisms, etc.

[0173] The vitreous matrix or glass-ceramics of the present invention can be used to manufacture a glass shaped body or a glass-ceramics shaped body of a sheet by methods such as grinding or polishing, but the methods for manufacturing a glass shaped body or a glass-ceramics shaped body are not limited to these methods.

[0174] The vitreous matrix or glass-ceramics of the present invention can be used to prepare glass shaped bodies or glass-ceramics shaped bodies of various shapes by methods such as a hot bending process or a press molding process at a certain temperature, but are not limited to these methods.

[0175] In some embodiments, a glass shaped body or a glass-ceramics shaped body can be formed by a hot bending process. The hot bending process is a process in which 2D or 2.5D glass or glass-ceramics is placed in a mold and subjected to steps including heating and preheating, pressure forming, and pressure holding and cooling in a hot bending machine to obtain a 3D curved glass shaped body or glass-ceramics shaped body.

[0176] In some embodiments, the glass-ceramics shaped body has a 2.5D or 3D structure, that is, the glass-ceramics shaped body has a non-planar structure. The "non-planar structure" described herein means that in a 2.5D or 3D shape, at least a part of the glass-ceramics shaped body extends outward or extends along an angle with the plane defined by the original layout configuration of the 2D vitreous matrix. The 2.5D or 3D glass-ceramics shaped body formed from the vitreous matrix can have one or more convex or curved parts.

[0177] In some embodiments, in combination with the characteristics such as the growth and transformation of the crystal phase in the glass-ceramics, the manufacturing method of the glass-ceramics shaped body is a hot bending process method. Specifically, the method includes pre-crystallization and hot processing and forming. The pre-crystallization of the present invention is to form pre-crystallized glass from the vitreous matrix by controlling the crystallization process, and the crystallinity of the pre-crystallized glass does not reach the crystallinity required for the performance index of the target glass-ceramics shaped body. The pre-crystallized glass is then formed into a glass-ceramics shaped body through a hot processing and forming process.

[0178] In some embodiments, the method for manufacturing a glass-ceramic formed body includes the following steps:

[0179] 1) Subject the base glass to a primary crystallization heat treatment process, including heating, holding for nucleation, heating, holding for crystallization, and cooling to room temperature, to form a pre-crystallized glass;

[0180] 2) Thermally process and form the pre-crystallized glass to obtain a glass-ceramic formed body.

[0181] The crystallization heat treatment process described in the present invention includes subjecting the base glass to nucleation at a certain temperature T h and time t h and then subjecting it to crystallization at a certain temperature T c and time t c The crystallinity of the obtained pre-crystallized glass does not reach the crystallinity required for the performance index of the target glass-ceramic formed body. Applying XRD test data, the total content of the main crystal phase in the crystallinity of the pre-crystallized glass is calculated to be I c1 . The pre-crystallization in the present invention is a complete process from a technological perspective, including one step of nucleation process, one stage, two stages, three stages or more of crystallization processes, etc. It is a complete process from heating, holding, reheating, holding... and then cooling to room temperature according to the process. Different from the primary crystallization, secondary crystallization... mentioned in some literatures or patents, the present invention is actually only the first stage of crystallization in a complete crystallization process, the second stage of crystallization... and they are continuous in the middle, without the process of reheating and crystallizing after cooling to room temperature.

[0182] The thermoforming described in the present invention refers to subjecting the pre-crystallized glass to thermoforming treatment under certain conditions of temperature, time, pressure, etc. The thermoforming includes more than one thermoforming process, and the thermoforming process includes, but is not limited to, pressing, bending or drawing the pre-crystallized glass under certain conditions of temperature, time, pressure, etc. During the thermoforming process, sometimes a formed body with a complex shape cannot be completed through one thermoforming and may require more than two thermoforming processes to achieve.

[0183] In some embodiments, the method for manufacturing a glass-ceramic formed body is a hot bending process method. Specifically, in some embodiments, the method for manufacturing a glass-ceramic formed body includes the following steps:

[0184] 1) Heating and preheating: Place the substrate glass, pre-crystallized glass or glass-ceramics in a mold. The mold passes through each heating station in a hot bending machine in sequence and stays at each station for a certain period of time for heat preservation. The temperature in the preheating zone is 400 - 800 °C, the pressure is 0.01 - 0.05 MPa, and the time is 40 - 200 s. In some embodiments, for a hot bending machine with 5 preheating stations, generally the initial heating is stably set at about 500 °C, the temperature gradually increases at subsequent stations, the temperature gradient between adjacent stations gradually decreases from low to high, and the temperature difference between the last preheating station and the first pressing station is within 20 °C.

[0185] 2) Pressing and forming: After preheating, the mold is transferred to the forming station, and the hot bending machine applies a certain pressure to the mold. The pressure range is 0.1 - 0.8 Mpa, and the pressure value is determined according to factors such as the glass thickness and curvature. The temperature range at the forming station is 600 - 850 °C, and the forming time range is 40 - 200 s.

[0186] 3) Pressure holding and cooling: Transfer the mold to the cooling station and cool it down station by station. Control the cooling temperature range at 750 - 500 °C, the pressure is 0.01 - 0.05 Mpa, and the time is 40 - 200 s.

[0187] In addition to controlling the appearance quality like ordinary high-aluminum glass, when forming a glass-ceramics formed body by a hot bending process, it is also necessary to control the influence of crystal growth and development during hot bending on the properties of the glass-ceramics. For example, for 3D curved glass-ceramics used in display devices or the casings of electronic devices, it is necessary to closely monitor the light transmittance, haze, |B| value and its uniformity after hot bending.

[0188] The substrate glass, glass-ceramics and glass-ceramics products described in the present invention can have any thickness that is reasonable and useful.

[0189] In addition to improving mechanical properties by precipitating crystals, the glass-ceramics of the present invention can also obtain more excellent mechanical properties by forming a compressive stress layer, thereby making glass-ceramics products.

[0190] In some embodiments, the substrate glass or glass-ceramics can be processed into sheets, and / or shaped (such as punching, hot bending, etc.), polished and / or buffed after shaping, and then chemically strengthened through a chemical strengthening process.

[0191] The chemical strengthening described in the present invention is the ion exchange method. During the ion exchange process, smaller metal ions in the substrate glass or glass-ceramics are replaced or "exchanged" by larger metal ions with the same valence state close to the substrate glass or glass-ceramics. Replacing smaller ions with larger ions constructs compressive stress in the substrate glass or glass-ceramics to form a compressive stress layer.

[0192] In some embodiments, the metal ion is a monovalent alkali metal ion (e.g., Na + , K + , Rb + , Cs + , etc.). The ion exchange is carried out by immersing the base glass or glass-ceramic in a salt bath containing at least one molten salt of a larger metal ion, which is used to replace the smaller metal ion in the base glass. Alternatively, other monovalent metal ions such as Ag + , Tl + , Cu + , etc. can also be used for exchanging monovalent ions. One or more ion exchange processes for chemically strengthening the base glass or glass-ceramic may include, but are not limited to: immersing it in a single salt bath, or immersing it in multiple salt baths with the same or different compositions, with washing and / or annealing steps between the immersions.

[0193] In some embodiments, the base glass or glass-ceramic can be ion-exchanged by immersing it in a salt bath of molten Na salt (such as NaNO3) at a temperature of about 350 - 470 °C for about 1 - 36 hours, preferably in the temperature range of 400 - 460 °C and preferably in the time range of 2 - 15 hours. In this embodiment, Na ions replace some Li ions in the base glass or glass-ceramic, thereby forming a surface compression layer and exhibiting high mechanical properties. In some embodiments, the base glass or glass-ceramic can be ion-exchanged by immersing it in a mixed salt bath of molten K salt and Na salt at a temperature of about 360 - 450 °C for 1 - 36 hours, preferably in the time range of 2 - 24 hours.

[0194] The glass-ceramic of the present invention has efficient low-temperature ion exchange performance. In some embodiments, at a lower ion exchange temperature and a shorter exchange time, the depth of the exchange layer of Na ions can reach more than 75 μm. After ion exchange, the hardness of the glass-ceramic product is significantly improved. The main reason is that ion exchange forms a higher compressive stress on the surface of the glass-ceramic product through the "jamming effect", making the anti-deformation performance of the glass-ceramic product increase and the hardness improve. In some embodiments, after chemical strengthening of the glass-ceramic of the present invention, the Vickers hardness of the obtained glass-ceramic product can reach 650 kgf / mm 2 or more.

[0195] The performance indexes of the glass-ceramic and / or glass-ceramic product of the present invention are tested by the following methods:

[0196] [Haze]

[0197] Using a haze meter Minolta CM3600A, preparing samples with a thickness of less than 1 mm, and testing according to the standard of GB2410 - 80.

[0198] [Grain size]

[0199] It is measured by SEM (scanning electron microscope). The glass-ceramics are surface-treated in HF acid, then sputter-coated with gold on the surface of the glass-ceramics, and surface-scanned under the SEM to determine the grain size.

[0200] [Light transmittance]

[0201] The light transmittance described in this article is all external transmittance, sometimes simply referred to as transmittance.

[0202] The sample is processed to less than 1 mm and polished with parallel opposite surfaces, and the average light transmittance in the range of 400 - 800 nm is measured using a Hitachi U-41000 spectrophotometer.

[0203] The sample is processed to less than 1 mm and polished with parallel opposite surfaces, and the light transmittance at 550 nm is measured using a Hitachi U-41000 spectrophotometer.

[0204] [Ion exchange layer depth]

[0205] The ion exchange layer depth is measured using a glass surface stress meter SLP-2000.

[0206] As the measurement conditions, calculations are performed with the refractive index of the sample being 1.56 and the photoelastic constant being 29 [(nm / cm) / Mpa].

[0207] [Surface stress]

[0208] The surface stress is measured using a glass surface stress meter SLP-2000.

[0209] As the measurement conditions, calculations are performed with the refractive index of the sample being 1.56 and the photoelastic constant being 29 [(nm / cm) / Mpa].

[0210] [Drop resistance]

[0211] The drop test machine WH-2101 is used for the drop resistance test. By loading glass products of the same specification on the 2D microcrystalline glass products (each piece weighs 20 g and 2 pieces are loaded), and laying sandpaper with a mesh size of 60-80 on the base, and freely dropping from a specified height, the sample directly hits the sandpaper, and the height at which the sample can withstand the impact without breaking is the drop resistance. Specifically, the test starts from a height of 600 mm, and without breaking, the height is sequentially changed through 700 mm, 800 mm, 900 mm, 1000 mm and above. For the embodiments with "drop resistance", the microcrystalline glass products are used as the test objects. The test data recorded as 1000 mm in the embodiments indicates that even the microcrystalline glass products with a load from a height of 1000 mm do not break and withstand the impact. The maximum test height of the drop test machine WH-2101 is 2000 mm.

[0212] [Falling ball test height]

[0213] Place the microcrystalline glass product sample of 145 mm × 67 mm × 0.7 mm on the glass bearing fixture, and let a 132 g steel ball drop from a specified height, and the landing point is the center point of the sample. The maximum falling ball test height at which the sample can withstand the impact without breaking. Specifically, the falling ball test height starts from 400 mm for dropping the ball, and drops once at each height. If the sample does not break, then it rises by 100 mm sequentially to continue the test until the sample breaks. For the embodiments with "falling ball test height", the microcrystalline glass products are used as the test objects. The test data recorded as 1700 mm in the embodiments indicates that even when the steel ball drops from a height of 1700 mm on the microcrystalline glass products, the products do not break and withstand the impact. In the present invention, the falling ball test height is sometimes simply referred to as the falling ball height.

[0214] [Fracture toughness]

[0215] Using the method of directly measuring the indentation extended crack size, the sample specification is 2 mm × 4 mm × 20 mm. After chamfering, grinding and polishing, after the sample preparation is completed, apply a force of 49 N on the sample with a Vickers hardness indenter and maintain it for 30 s. After making the indentation, use the three-point bending method to measure its fracture strength.

[0216] [Four-point bending strength]

[0217] Adopt the microcomputer-controlled electronic universal testing machine CMT6502, and the sample specification is a thickness of less than 1 mm (preferably 0.7 mm thickness), and test according to the standard of 《ASTM C 158-2002》. In the present invention, the four-point bending strength is sometimes simply referred to as the bending strength.

[0218] [Vickers hardness]

[0219] The value obtained by dividing the load (N) when a diamond square pyramid indenter with a relative face angle of 136° is pressed into a pyramid-shaped depression on the test surface by the surface area (mm 2 ) calculated from the length of the depression is used to represent. The test load is 100 (N) and the holding time is 15 (seconds). In the present invention, Vickers hardness is sometimes simply referred to as hardness.

[0220] [Crushing strength]

[0221] Using a microcomputer-controlled electronic universal testing machine CMT6502, place a microcrystalline glass product sample of 145 mm × 67 mm × 0.7 mm on the glass bearing fixture. The extrusion rod is designed with a mushroom head, with a diameter of ￠10 mm and a downward pressing speed of 5 mm / min until the sample is damaged. It needs to be calibrated with a jig before testing, and the test point is at the center position. Click the test button until the microcrystalline glass product sample is crushed by extrusion, and record the pressure (N) when the sample is broken. For the embodiments with "crushing strength", the microcrystalline glass products are used as the test objects. The test data recorded as 500 N in the embodiments indicates that the maximum extrusion force that the microcrystalline glass products can withstand before breaking is 500 N.

[0222] [∣B∣ value]

[0223] Use Minolta CM-700d to detect the B value. The sample specification is less than 1 mm in thickness. Use the supporting calibration long tube and short tube to perform instrument zero calibration and whiteboard calibration respectively. After calibration, use the long tube to perform an empty test to determine the reliability of the instrument's stable calibration (B ≤ 0.05). After the instrument calibration is qualified, place the product on the zero-position long tube for testing.

[0224] The ∣B∣ value is the absolute value of the B value.

[0225] [Young's modulus]

[0226] Young's modulus (E) is measured by ultrasonic waves to obtain the longitudinal wave velocity and transverse wave velocity, and then calculated according to the following formula.

[0227]

[0228] G = V S 2 ρ

[0229] In the formula: E is Young's modulus, Pa;

[0230] G is the shear modulus, Pa;

[0231] V T is the transverse wave velocity, m / s;

[0232] V S is the longitudinal wave velocity, m / s;

[0233] ρ is the glass density, g / cm 3 .

[0234] The glass-ceramic products of the present invention have the following properties:

[0235] 1) In some embodiments, the grain size of the glass-ceramic product is below 60 nm, preferably below 45 nm, more preferably 10 - 30 nm.

[0236] 2) In some embodiments, the depth of the ion-exchange layer of the glass-ceramic product is 75 μm or more, preferably 80 - 150 μm, more preferably 100 - 125 μm.

[0237] 3) In some embodiments, the surface stress of the glass-ceramic product is 200 MPa or more, preferably 250 - 400 MPa, more preferably 300 - 400 MPa.

[0238] 4) In some embodiments, the height of the ball-drop test of the glass-ceramic product is 1000 mm or more, preferably 1200 mm or more, more preferably 1500 mm or more.

[0239] 5) In some embodiments, the drop resistance of the glass-ceramic product is 1200 mm or more, preferably 1300 mm or more, more preferably 1400 mm or more.

[0240] 6) In some embodiments, the fracture toughness of the glass-ceramic product is 1.0 MPa·m 1 / 2 or more, preferably 1.2 MPa·m 1 / 2 or more, more preferably 1.2 - 1.6 MPa·m 1 / 2 .

[0241] 7) In some embodiments, the four-point bending strength of the glass-ceramic product is 500 MPa or more, preferably 600 MPa or more, more preferably 700 - 1000 MPa.

[0242] 8) In some embodiments, the extrusion resistance of the glass-ceramic product is 400 N or more, preferably 400 - 550 N, more preferably 450 - 550 N.

[0243] 9) In some embodiments, the Vickers hardness (H v ) of the glass-ceramic product is 650 kgf / mm 2 or more, preferably 660 kgf / mm 2 or more, more preferably 680 - 750 kgf / mm 2 .

[0244] 10) In some embodiments, the haze of the glass-ceramics product with a thickness of less than 1 mm is 0.3% or less, preferably 0.25% or less, and more preferably 0.05 - 0.2%. The thickness is preferably 0.2 - 1 mm, more preferably 0.3 - 0.9 mm, further preferably 0.5 - 0.8 mm, and still more preferably 0.55 mm or 0.6 mm or 0.68 mm or 0.7 mm or 0.75 mm.

[0245] 11) In some embodiments, for the glass-ceramics product with a thickness of less than 1 mm, the average light transmittance at a wavelength of 400 - 800 nm is 87.0% or more, preferably 88.5% or more, and more preferably 89.5% or more. The thickness is preferably 0.2 - 1 mm, more preferably 0.3 - 0.9 mm, further preferably 0.5 - 0.8 mm, and still more preferably 0.55 mm or 0.6 mm or 0.68 mm or 0.7 mm or 0.75 mm.

[0246] 12) In some embodiments, for the glass-ceramics product with a thickness of less than 1 mm, the light transmittance at a wavelength of 550 nm is 87.0% or more, preferably 88.0% or more, and more preferably 89.0% or more. The thickness is preferably 0.2 - 1 mm, more preferably 0.3 - 0.9 mm, further preferably 0.5 - 0.8 mm, and still more preferably 0.55 mm or 0.6 mm or 0.68 mm or 0.7 mm or 0.75 mm.

[0247] 13) In some embodiments, for the glass-ceramics product with a thickness of less than 1 mm, the average light ∣B∣ value at 400 - 800 nm is 1.0 or less, preferably 0.8 or less, and more preferably 0.3 - 0.6. The thickness is preferably 0.2 - 1 mm, more preferably 0.3 - 0.9 mm, further preferably 0.5 - 0.8 mm, and still more preferably 0.55 mm or 0.6 mm or 0.68 mm or 0.7 mm or 0.75 mm.

[0248] The glass-ceramics of the present invention has the following properties:

[0249] 1) In some embodiments, the grain size of the glass-ceramics is 60 nm or less, preferably 45 nm or less, and more preferably 10 - 30 nm.

[0250] 2) In some embodiments, the haze of the glass-ceramics with a thickness of less than 1 mm is 0.3% or less, preferably 0.25% or less, and more preferably 0.05 - 0.2%. The thickness is preferably 0.2 - 1 mm, more preferably 0.3 - 0.9 mm, further preferably 0.5 - 0.8 mm, and still more preferably 0.55 mm or 0.6 mm or 0.68 mm or 0.7 mm or 0.75 mm.

[0251] 3) In some embodiments, for the glass-ceramics with a thickness of less than 1 mm, the average light transmittance at a wavelength of 400 - 800 nm is 87.0% or more, preferably 88.5% or more, and more preferably 89.5% or more. The thickness is preferably 0.2 - 1 mm, more preferably 0.3 - 0.9 mm, further preferably 0.5 - 0.8 mm, and even more preferably 0.55 mm or 0.6 mm or 0.68 mm or 0.7 mm or 0.75 mm.

[0252] 4) In some embodiments, for the glass-ceramics with a thickness of less than 1 mm, the light transmittance at a wavelength of 550 nm is 87.0% or more, preferably 88.0% or more, and more preferably 89.0% or more. The thickness is preferably 0.2 - 1 mm, more preferably 0.3 - 0.9 mm, further preferably 0.5 - 0.8 mm, and even more preferably 0.55 mm or 0.6 mm or 0.68 mm or 0.7 mm or 0.75 mm.

[0253] 5) In some embodiments, for the glass-ceramics with a thickness of less than 1 mm, the average light |B| value at 400 - 800 nm is 1.0 or less, preferably 0.8 or less, and more preferably 0.3 - 0.6. The thickness is preferably 0.2 - 1 mm, more preferably 0.3 - 0.9 mm, further preferably 0.5 - 0.8 mm, and even more preferably 0.55 mm or 0.6 mm or 0.68 mm or 0.7 mm or 0.75 mm.

[0254] 6) In some embodiments, the Young's modulus (E) of the glass-ceramics is 80 - 110 GPa, preferably 85 - 105 GPa, and more preferably 90 - 105 GPa.

[0255] 7) In some embodiments, the Vickers hardness (H v ) of the glass-ceramics is 550 kgf / mm 2 or more, preferably 580 kgf / mm 2 or more, and more preferably 600 - 650 kgf / mm 2 .

[0256] Due to the above excellent properties, the glass-ceramics, glass-ceramic products, parent glasses, glass preforms, and glass-ceramic preforms of the present invention can be widely fabricated into glass covers or glass components. At the same time, the glass-ceramics, glass-ceramic products, parent glasses, glass preforms, and glass-ceramic preforms of the present invention can be applied to electronic devices or display devices, such as mobile phones, watches, computers, touch display screens, etc., for manufacturing protective glasses for mobile phones, smart phones, tablet computers, laptop computers, PDAs, televisions, personal computers, MTA machines, or industrial displays, or for manufacturing touch screens, protective windows, automobile windows, train windows, aircraft windows, touch screen protective glasses, or for manufacturing hard disk substrates or solar cell substrates, or for manufacturing white household appliances, such as for manufacturing refrigerator components or kitchen utensils.

[0257] Examples

[0258] To further clarify and illustrate the technical solutions of the present invention, the following non-limiting examples are provided. In the examples of the present invention, numerous efforts have been made to ensure the accuracy of numerical values (such as quantities, temperatures, etc.), but it must be taken into account that there are some errors and deviations. The compositions themselves are given in weight percentages based on oxides and have been normalized to 100%.

[0259] <Examples of Glass-Ceramics>

[0260] In this example, glass-ceramics having the compositions shown in Tables 1 to 4 were obtained by using the above-described method for manufacturing glass-ceramics. In addition, the properties of each glass-ceramic were measured by the testing method described in the present invention, and the measurement results are shown in Tables 1 to 4. In the following examples, the sample thickness for measuring haze, average light transmittance at wavelengths of 400 to 800 nm, light transmittance at a wavelength of 550 nm, and average light ∣B∣ value at 400 to 800 nm is 0.7 mm.

[0261] Table 1.

[0262]

[0263]

[0264] Table 2.

[0265]

[0266]

[0267] Table 3.

[0268]

[0269]

[0270] Table 4.

[0271]

[0272]

[0273] <Example of glass-ceramics product>

[0274] In this example, the glass-ceramics products with the compositions shown in Tables 5 to 8 were obtained by using the above manufacturing method of glass-ceramics products. In addition, the properties of each glass-ceramics product were measured by the testing method described in the present invention, and the measurement results are shown in Tables 5 to 8. In the following examples, the sample thickness for measuring haze, average light transmittance at wavelengths of 400 to 800 nm, light transmittance at a wavelength of 550 nm, and average light |B| value at wavelengths of 400 to 800 nm is 0.7 mm.

[0275] Table 5.

[0276]

[0277]

[0278] Table 6.

[0279]

[0280]

[0281] Table 7.

[0282]

[0283]

[0284] Table 8.

[0285]

[0286]

Claims

1. Glass-ceramic product, characterized in that, Its components are expressed by weight percentage and contain: SiO2: 40 - 55%; Al2O3: 15 - 30%; Li2O: 0.1 - 6%; ZnO: 9 - 19%; MgO: 0.1 - 6%; TiO2: 0.5 - 7%.

2. The glass-ceramic article according to claim 1, wherein Its components are expressed by weight percentage and also contain: P2O5 + ZrO2: 0 - 8%; and / or Na2O: 0 - 6%; and / or B2O3: 0 - 4%; and / or K2O: 0 - 3%; and / or CaO + BaO + SrO: 0 - 5%; and / or Y2O3: 0 - 6%; and / or clarifying agent: 0 - 2%.

3. Glass-ceramic products, characterized in that, Its components contain SiO2, Al2O3, ZnO and TiO2, the glass-ceramics product contains a spinel crystal phase, and the drop resistance of the glass-ceramics product is more than 1200 mm.

4. Glass-ceramic products, characterized in that, Its components contain SiO2, Al2O3 and ZnO and contain a spinel crystal phase.

5. The glass-ceramic article according to claim 3 or 4, characterized in that, Its components are expressed by weight percentage and contain: SiO2: 40 - 55%; and / or Al2O3: 15 - 30%; and / or Li2O: 0.1 - 6%; and / or ZnO: 9 - 19%; and / or MgO: 0.1 - 6%; and / or TiO2: 0.5 - 7%; and / or P2O5 + ZrO2: 0 - 8%; and / or Na2O: 0 - 6%; and / or B2O3: 0 - 4%; and / or K2O: 0 - 3%; and / or CaO + BaO + SrO: 0 - 5%; and / or Y2O3: 0 - 6%; and / or clarifying agent: 0 - 2%.

6. The glass-ceramic article according to any one of claims 1 to 5, characterized in that, Its components are expressed by weight percentage and satisfy one or more of the following 9 cases: 1) Li2O / TiO2 is 0.2 - 4.5, preferably Li2O / TiO2 is 0.3 - 2.5, more preferably Li2O / TiO2 is 0.3 - 1.8, further preferably Li2O / TiO2 is 0.4 - 1.4, and even more preferably Li2O / TiO2 is 0.5 - 0.9; 2) Al2O3 + ZnO is 26 - 45%, preferably Al2O3 + ZnO is 30 - 42%, more preferably Al2O3 + ZnO is 32 - 42%, further preferably Al2O3 + ZnO is 35 - 40%, and even more preferably Al2O3 + ZnO is 36 - 40%; 3) Al2O3 / ZnO is 1.0 - 3.0, preferably Al2O3 / ZnO is 1.3 - 3.0, more preferably Al2O3 / ZnO is 1.6 - 3.0, further preferably Al2O3 / ZnO is 2.1 - 3.0, and even more preferably Al2O3 / ZnO is 2.3 - 3.0; 4) SiO2 / Al2O3 is 1.5 - 3.2, preferably SiO2 / Al2O3 is 1.5 - 2.8, more preferably SiO2 / Al2O3 is 1.5 - 2.4, further preferably SiO2 / Al2O3 is 1.5 - 2.2, and even more preferably SiO2 / Al2O3 is 1.55 - 2.0; 5) The value of (TiO2 + ZnO) / Al2O3 is 0.4 to 1.5, preferably (TiO2 + ZnO) / Al2O3 is 0.4 to 1.3, more preferably (TiO2 + ZnO) / Al2O3 is 0.4 to 1.1, further preferably (TiO2 + ZnO) / Al2O3 is 0.4 to 0.95, and even more preferably (TiO2 + ZnO) / Al2O3 is 0.4 to 0.75; 6) The value of (Li2O + MgO) / TiO2 is 0.3 to 8.0, preferably (Li2O + MgO) / TiO2 is 0.5 to 6.0, more preferably (Li2O + MgO) / TiO2 is 0.7 to 4.0, further preferably (Li2O + MgO) / TiO2 is 0.9 to 2.5, and even more preferably (Li2O + MgO) / TiO2 is 1.0 to 1.8; 7) The value of Al2O3 / (MgO + TiO2) is 1.3 to 10.0, preferably Al2O3 / (MgO + TiO2) is 2.5 to 8.5, more preferably Al2O3 / (MgO + TiO2) is 3.0 to 7.5, further preferably Al2O3 / (MgO + TiO2) is 4.0 to 7.0, and even more preferably Al2O3 / (MgO + TiO2) is 5.0 to 6.4; 8) The value of (SiO2 + Na2O) / ZnO is 2.2 to 6.2, preferably (SiO2 + Na2O) / ZnO is 2.7 to 6.2, more preferably (SiO2 + Na2O) / ZnO is 3.2 to 6.0, further preferably (SiO2 + Na2O) / ZnO is 4.0 to 6.0, and even more preferably (SiO2 + Na2O) / ZnO is 4.7 to 5.7; 9) The value of (Na2O + K2O) / ZnO is 0.8 or less, preferably (Na2O + K2O) / ZnO is greater than 0 but less than or equal to 0.7, more preferably (Na2O + K2O) / ZnO is 0.05 to 0.65, further preferably (Na2O + K2O) / ZnO is 0.1 to 0.6, and even more preferably (Na2O + K2O) / ZnO is 0.15 to 0.

55.

7. The glass-ceramic article according to any one of claims 1 to 5, characterized in that, Its components are expressed by weight percentage and contain: SiO2: 42 - 53%, preferably SiO2: 44 - 52%, more preferably SiO2: 44.5 - 49%; and / or Al2O3: 20.5 - 30%, preferably Al2O3: 22 - 30%, more preferably Al2O3: 25.5 - 29.5%; and / or Li2O: 0.1 - 5%, preferably Li2O: 0.5 - 4.5%, more preferably Li2O: 1 - 4%; and / or ZnO: 9 - 18%, preferably ZnO: 9 - 16%, more preferably ZnO: 9 - 13%; and / or MgO: 0.1 - 5%, preferably MgO: 0.5 - 4.5%, more preferably MgO: 1 - 4%; and / or TiO2: 1 - 6%, preferably TiO2: 1 - 5%, more preferably TiO2: 2 - 5%; and / or P2O5 + ZrO2: 0.1 - 7%, preferably P2O5 + ZrO2: 0.1 - 6%, more preferably P2O5 + ZrO2: 0.5 - 5%; and / or Na2O: 0.1 - 6%, preferably Na2O: 0.1 - 5.5%, more preferably Na2O: 0.5 - 5%; and / or B2O3: 0 - 2%, preferably B2O3: 0 - 1%, more preferably B2O3: 0 - 0.5%; and / or K2O: 0 - 2%, preferably K2O: 0 - 1%, more preferably K2O: 0 - 0.5%; and / or CaO + BaO + SrO: 0 - 4%, preferably CaO + BaO + SrO: 0 - 2%, more preferably CaO + BaO + SrO: 0 - 0.5%, further preferably CaO + BaO + SrO: 0%; and / or Y2O3: 0 - 4%, preferably Y2O3: 0 - 2%, more preferably Y2O3: 0 - 1%, further preferably Y2O3: 0%; and / or clarifying agent: 0 - 1%, preferably clarifying agent: 0 - 0.5%.

8. The glass-ceramic article according to any one of claims 1 to 5, characterized in that, Its components are expressed by weight percentage and contain: P2O5: 0 - 5%, preferably P2O5: 0 - 4%, more preferably P2O5: 0 - 3%, further preferably P2O5: 0 - 1.5%; and / or ZrO2: 0 - 5%, preferably ZrO2: 0.1 - 4%, more preferably ZrO2: 0.5 - 3%.

9. The glass-ceramic article according to any one of claims 1 to 5, characterized in that, The glass-ceramic product contains a spinel crystal phase. Preferably, the spinel crystal phase has a higher weight percentage than other crystal phases. More preferably, the weight percentage of the spinel crystal phase in the glass-ceramic product is 20 - 60%. Further preferably, the weight percentage of the spinel crystal phase in the glass-ceramic product is 25 - 50%. Still further preferably, the weight percentage of the spinel crystal phase in the glass-ceramic product is 25 - 45%. Even further preferably, the weight percentage of the spinel crystal phase in the glass-ceramic product is 30 - 45%.

10. The glass-ceramics product according to any one of claims 1 to 5, characterized in that, The glass-ceramic product contains a quartz crystal phase. Preferably, the weight percentage of the quartz crystal phase in the glass-ceramic product is 20% or less. More preferably, the weight percentage of the quartz crystal phase in the glass-ceramic product is 10% or less. Further preferably, the weight percentage of the quartz crystal phase in the glass-ceramic product is 5% or less. Still further preferably, the glass-ceramic product does not contain a quartz crystal phase.

11. The glass-ceramic article according to any one of claims 1 to 5, characterized in that, Its components are expressed by weight percentage and contain: La2O3 + Gd2O3 + Yb2O3 + Nb2O5 + WO3 + Bi2O3 + Ta2O5 + TeO2: 0 - 5%, preferably La2O3 + Gd2O3 + Yb2O3 + Nb2O5 + WO3 + Bi2O3 + Ta2O5 + TeO2: 0 - 2%, more preferably La2O3 + Gd2O3 + Yb2O3 + Nb2O5 + WO3 + Bi2O3 + Ta2O5 + TeO2: 0 - 1%, further preferably without La2O3, and / or without Gd2O3, and / or without Yb2O3, and / or without Nb2O5, and / or without WO3, and / or without Bi2O3, and / or without Ta2O5, and / or without TeO2.

12. The glass-ceramic article according to any one of claims 1 to 5, characterized in that, The grain size of the glass-ceramics product is below 60 nm, preferably below 45 nm, more preferably 10 - 30 nm; and / or the depth of the ion exchange layer is 75 μm or more, preferably 80 - 150 μm, more preferably 100 - 125 μm; and / or the surface stress is 200 MPa or more, preferably 250 - 400 MPa, more preferably 300 - 400 MPa; and / or the height of the ball-drop test is 1000 mm or more, preferably 1200 mm or more, more preferably 1500 mm or more; and / or the drop resistance is 1200 mm or more, preferably 1300 mm or more, more preferably 1400 mm or more; and / or the fracture toughness is 1.0 MPa·m 1 / 2 or more, preferably 1.2 MPa·m 1 / 2 or more, more preferably 1.2 - 1.6 MPa·m 1 / 2 ; and / or the four-point bending strength is 500 MPa or more, preferably 600 MPa or more, more preferably 700 - 1000 MPa; and / or the extrusion resistance is 400 N or more, preferably 400 - 550 N, more preferably 450 - 550 N; and / or the Vickers hardness is 650 kgf / mm 2 or more, preferably 660 kgf / mm 2 or more, more preferably 680 - 750 kgf / mm 2 .

13. The glass-ceramic article according to any one of claims 1 to 5, characterized in that, The haze of the glass-ceramic product with a thickness of less than 1 mm is 0.3% or less, preferably 0.25% or less, more preferably 0.05 - 0.2%; and / or the average light transmittance at a wavelength of 400 - 800 nm is 87.0% or more, preferably 88.5% or more, more preferably 89.5% or more; and / or the light transmittance at a wavelength of 550 nm is 87.0% or more, preferably 88.0% or more, more preferably 89.0% or more; and / or the average light ∣B∣ value at 400 - 800 nm is 1.0 or less, preferably 0.8 or less, more preferably 0.3 - 0.

6.

14. The glass-ceramic article according to claim 13, characterized in that, The thickness of the glass-ceramic product is 0.2 - 1 mm, preferably 0.3 - 0.9 mm, more preferably 0.5 - 0.8 mm, further preferably 0.55 mm or 0.6 mm or 0.68 mm or 0.7 mm or 0.75 mm.

15. The glass-ceramic article according to any one of claims 1 to 5, characterized in that, Its components are expressed by weight percentage and contain: NiO: 0 - 4%; and / or Ni2O3: 0 - 4%; and / or CoO: 0 - 2%; and / or Co2O3: 0 - 2%; and / or Fe2O3: 0 - 7%; and / or MnO2: 0 - 4%; and / or Er2O3: 0 - 8%; and / or Nd2O3: 0 - 8%; and / or Cu2O: 0 - 4%; and / or Pr2O3: 0 - 8%; and / or CeO2: 0 - 4%.

16. Glass-ceramics, characterized in that, Its components are expressed by weight percentage and contain: SiO2: 40 - 55%; Al2O3: 15 - 30%; Li2O: 0.1 - 6%; ZnO: 9 - 19%; MgO: 0.1 - 6%; TiO2: 0.5 - 7%.

17. The glass-ceramics according to claim 16, wherein, Its components are expressed by weight percentage and also contain: P2O5 + ZrO2: 0 - 8%; and / or Na2O: 0 - 6%; and / or B2O3: 0 - 4%; and / or K2O: 0 - 3%; and / or CaO + BaO + SrO: 0 - 5%; and / or Y2O3: 0 - 6%; and / or clarifying agent: 0 - 2%.

18. Glass-ceramics, characterized in that, Its components contain SiO2, Al2O3, ZnO and TiO2, the glass-ceramics contain a spinel crystal phase, and the Vickers hardness of the glass-ceramics is 550 kgf / mm 2 or more.

19. Glass-ceramics, characterized in that, Its components contain SiO2, Al2O3 and ZnO, and the average light transmittance of the glass-ceramic with a thickness of less than 1 mm at a wavelength of 400 - 800 nm is 87.0% or more.

20. The glass-ceramics according to claim 18 or 19, characterized in that, Its components are expressed by weight percentage and contain: SiO2: 40 - 55%; and / or Al2O3: 15 - 30%; and / or Li2O: 0.1 - 6%; and / or ZnO: 9 - 19%; and / or MgO: 0.1 - 6%; and / or TiO2: 0.5 - 7%; and / or P2O5 + ZrO2: 0 - 8%; and / or Na2O: 0 - 6%; and / or B2O3: 0 - 4%; and / or K2O: 0 - 3%; and / or CaO + BaO + SrO: 0 - 5%; and / or Y2O3: 0 - 6%; and / or clarifying agent: 0 - 2%.

21. The glass-ceramics according to any one of claims 16 to 20, characterized in that, Its components are expressed by weight percentage and satisfy one or more of the following 9 cases: 1) Li2O / TiO2 is 0.2 - 4.5, preferably Li2O / TiO2 is 0.3 - 2.5, more preferably Li2O / TiO2 is 0.3 - 1.8, further preferably Li2O / TiO2 is 0.4 - 1.4, and even more preferably Li2O / TiO2 is 0.5 - 0.9; 2) Al2O3 + ZnO is 26 - 45%, preferably Al2O3 + ZnO is 30 - 42%, more preferably Al2O3 + ZnO is 32 - 42%, further preferably Al2O3 + ZnO is 35 - 40%, and even more preferably Al2O3 + ZnO is 36 - 40%; 3) Al2O3 / ZnO is 1.0 - 3.0, preferably Al2O3 / ZnO is 1.3 - 3.0, more preferably Al2O3 / ZnO is 1.6 - 3.0, further preferably Al2O3 / ZnO is 2.1 - 3.0, and even more preferably Al2O3 / ZnO is 2.3 - 3.0; 4) SiO2 / Al2O3 is 1.5 - 3.2, preferably SiO2 / Al2O3 is 1.5 - 2.8, more preferably SiO2 / Al2O3 is 1.5 - 2.4, further preferably SiO2 / Al2O3 is 1.5 - 2.2, and even more preferably SiO2 / Al2O3 is 1.55 - 2.0; 5) (TiO2 + ZnO) / Al2O3 is 0.4 - 1.5, preferably (TiO2 + ZnO) / Al2O3 is 0.4 - 1.3, more preferably (TiO2 + ZnO) / Al2O3 is 0.4 - 1.1, further preferably (TiO2 + ZnO) / Al2O3 is 0.4 - 0.95, and even more preferably (TiO2 + ZnO) / Al2O3 is 0.4 - 0.75; 6) (Li2O + MgO) / TiO2 is 0.3 - 8.0, preferably (Li2O + MgO) / TiO2 is 0.5 - 6.0, more preferably (Li2O + MgO) / TiO2 is 0.7 - 4.0, further preferably (Li2O + MgO) / TiO2 is 0.9 - 2.5, and even more preferably (Li2O + MgO) / TiO2 is 1.0 - 1.8; 7) The value of Al2O3 / (MgO + TiO2) is from 1.3 to 10.0, preferably the value of Al2O3 / (MgO + TiO2) is from 2.5 to 8.5, more preferably the value of Al2O3 / (MgO + TiO2) is from 3.0 to 7.5, further preferably the value of Al2O3 / (MgO + TiO2) is from 4.0 to 7.0, and still further preferably the value of Al2O3 / (MgO + TiO2) is from 5.0 to 6.4; 8) The value of (SiO2 + Na2O) / ZnO is from 2.2 to 6.2, preferably the value of (SiO2 + Na2O) / ZnO is from 2.7 to 6.2, more preferably the value of (SiO2 + Na2O) / ZnO is from 3.2 to 6.0, further preferably the value of (SiO2 + Na2O) / ZnO is from 4.0 to 6.0, and still further preferably the value of (SiO2 + Na2O) / ZnO is from 4.7 to 5.7; 9) The value of (Na2O + K2O) / ZnO is 0.8 or less, preferably the value of (Na2O + K2O) / ZnO is greater than 0 but less than or equal to 0.7, more preferably the value of (Na2O + K2O) / ZnO is from 0.05 to 0.65, further preferably the value of (Na2O + K2O) / ZnO is from 0.1 to 0.6, and still further preferably the value of (Na2O + K2O) / ZnO is from 0.15 to 0.

55.

22. The glass-ceramics according to any one of claims 16 to 20, characterized in that, Its components are expressed by weight percentage and contain: SiO2: 42 - 53%, preferably SiO2: 44 - 52%, more preferably SiO2: 44.5 - 49%; and / or Al2O3: 20.5 - 30%, preferably Al2O3: 22 - 30%, more preferably Al2O3: 25.5 - 29.5%; and / or Li2O: 0.1 - 5%, preferably Li2O: 0.5 - 4.5%, more preferably Li2O: 1 - 4%; and / or ZnO: 9 - 18%, preferably ZnO: 9 - 16%, more preferably ZnO: 9 - 13%; and / or MgO: 0.1 - 5%, preferably MgO: 0.5 - 4.5%, more preferably MgO: 1 - 4%; and / or TiO2: 1 - 6%, preferably TiO2: 1 - 5%, more preferably TiO2: 2 - 5%; and / or P2O5 + ZrO2: 0.1 - 7%, preferably P2O5 + ZrO2: 0.1 - 6%, more preferably P2O5 + ZrO2: 0.5 - 5%; and / or Na2O: 0.1 - 6%, preferably Na2O: 0.1 - 5.5%, more preferably Na2O: 0.5 - 5%; and / or B2O3: 0 - 2%, preferably B2O3: 0 - 1%, more preferably B2O3: 0 - 0.5%; and / or K2O: 0 - 2%, preferably K2O: 0 - 1%, more preferably K2O: 0 - 0.5%; and / or CaO + BaO + SrO: 0 - 4%, preferably CaO + BaO + SrO: 0 - 2%, more preferably CaO + BaO + SrO: 0 - 0.5%, further preferably CaO + BaO + SrO: 0%; and / or Y2O3: 0 - 4%, preferably Y2O3: 0 - 2%, more preferably Y2O3: 0 - 1%, further preferably Y2O3: 0%; and / or fining agent: 0 - 1%, preferably fining agent: 0 - 0.5%.

23. The glass-ceramics according to any one of claims 16 to 20, characterized in that, Its components are expressed by weight percentage and contain: P2O5: 0 - 5%, preferably P2O5: 0 - 4%, more preferably P2O5: 0 - 3%, further preferably P2O5: 0 - 1.5%; and / or ZrO2: 0 - 5%, preferably ZrO2: 0.1 - 4%, more preferably ZrO2: 0.5 - 3%.

24. The glass-ceramics according to any one of claims 16 to 20, characterized in that, The glass-ceramics contain a spinel crystal phase. Preferably, the spinel crystal phase has a higher weight percentage than other crystal phases. More preferably, the weight percentage of the spinel crystal phase in the glass-ceramics is 20 - 60%. Further preferably, the weight percentage of the spinel crystal phase in the glass-ceramics is 25 - 50%. Still further preferably, the weight percentage of the spinel crystal phase in the glass-ceramics is 25 - 45%. Even further preferably, the weight percentage of the spinel crystal phase in the glass-ceramics is 30 - 45%.

25. The glass-ceramics according to any one of claims 16 to 20, characterized in that, The glass-ceramics contain a quartz crystal phase. Preferably, the weight percentage of the quartz crystal phase in the glass-ceramics is 20% or less. More preferably, the weight percentage of the quartz crystal phase in the glass-ceramics is 10% or less. Further preferably, the weight percentage of the quartz crystal phase in the glass-ceramics is 5% or less. Even further preferably, the glass-ceramics do not contain a quartz crystal phase.

26. The glass-ceramics according to any one of claims 16 to 20, characterized in that, Its components are expressed in weight percentages and contain: La2O3 + Gd2O3 + Yb2O3 + Nb2O5 + WO3 + Bi2O3 + Ta2O5 + TeO2: 0 to 5%, preferably La2O3 + Gd2O3 + Yb2O3 + Nb2O5 + WO3 + Bi2O3 + Ta2O5 + TeO2: 0 to 2%, more preferably La2O3 + Gd2O3 + Yb2O3 + Nb2O5 + WO3 + Bi2O3 + Ta2O5 + TeO2: 0 to 1%, and further preferably does not contain La2O3, and / or does not contain Gd2O3, and / or does not contain Yb2O3, and / or does not contain Nb2O5, and / or does not contain WO3, and / or does not contain Bi2O3, and / or does not contain Ta2O5, and / or does not contain TeO2.

27. The glass-ceramics according to any one of claims 16 to 20, characterized in that, The grain size of the glass-ceramics is 60 nm or less, preferably 45 nm or less, more preferably 10 - 30 nm; and / or the Young's modulus is 80 - 110 GPa, preferably 85 - 105 GPa, more preferably 90 - 105 GPa; and / or the Vickers hardness is 550 kgf / mm 2 or more, preferably 580 kgf / mm 2 or more, more preferably 600 - 650 kgf / mm 2 .

28. The glass-ceramics according to any one of claims 16 to 20, characterized in that, The haze of the glass-ceramics with a thickness of less than 1 mm is 0.3% or less, preferably 0.25% or less, more preferably 0.05 to 0.2%; and / or the average light transmittance at a wavelength of 400 to 800 nm is 87.0% or more, preferably 88.5% or more, more preferably 89.5% or more; and / or the light transmittance at a wavelength of 550 nm is 87.0% or more, preferably 88.0% or more, more preferably 89.0% or more; and / or the average light ∣B∣ value at 400 to 800 nm is 1.0 or less, preferably 0.8 or less, more preferably 0.3 to 0.

6.

29. The glass-ceramics according to claim 28, wherein, The thickness of the glass-ceramics is 0.2 to 1 mm, preferably 0.3 to 0.9 mm, more preferably 0.5 to 0.8 mm, and further preferably 0.55 mm or 0.6 mm or 0.68 mm or 0.7 mm or 0.75 mm.

30. The glass-ceramics according to any one of claims 16 to 20, characterized in that, Its components are expressed in weight percentages and contain: NiO: 0 to 4%; and / or Ni2O3: 0 to 4%; and / or CoO: 0 to 2%; and / or Co2O3: 0 to 2%; and / or Fe2O3: 0 to 7%; and / or MnO2: 0 to 4%; and / or Er2O3: 0 to 8%; and / or Nd2O3: 0 to 8%; and / or Cu2O: 0 to 4%; and / or Pr2O3: 0 to 8%; and / or CeO2: 0 to 4%.

31. A glass cover plate, characterized in that, Contains the glass-ceramics product according to any one of claims 1 to 15, and / or the glass-ceramics according to any one of claims 16 to 30.

32. A glass component, characterized in that, Contains the glass-ceramics product according to any one of claims 1 to 15, and / or the glass-ceramics according to any one of claims 16 to 30.

33. An electronic device, characterized in that, Contains the glass-ceramics product according to any one of claims 1 to 15, and / or the glass-ceramics according to any one of claims 16 to 30, and / or the glass cover plate according to claim 31, and / or the glass component according to claim 32.

34. A display device, characterized in that, Contains the glass-ceramics product according to any one of claims 1 to 15, and / or the glass-ceramics according to any one of claims 16 to 30, and / or the glass cover plate according to claim 31, and / or the glass component according to claim 32.

35. The manufacturing method of the glass-ceramics product according to any one of claims 1 to 15, characterized in that, The method includes the following steps: forming a base glass, forming a glass-ceramic from the base glass through a crystallization process, and then forming a glass-ceramic article from the glass-ceramic through a chemical strengthening process.

36. The manufacturing method of the glass-ceramics product according to claim 35, characterized in that, The forming of the base glass includes the following steps: Mix the raw materials evenly according to the component ratio, then put them into a crucible, and melt them in an electric furnace or a gas furnace within a temperature range of 1350 - 1550 °C for 5 - 24 hours. Preferably, the melting temperature is 1450 - 1550 °C. Then, after clarification, homogenization, forming, and annealing, the base glass is obtained. The clarification temperature is greater than 1550 °C but less than or equal to 1650 °C, and the annealing temperature is 450 - 600 °C.

37. The manufacturing method of the glass-ceramic article according to claim 35, characterized in that, The crystallization process includes the following steps: heating to a specified crystallization treatment temperature, after reaching the crystallization treatment temperature, maintaining the temperature for a certain period of time, and then cooling down. The crystallization treatment temperature is 600 - 800 °C, preferably 650 - 750 °C, and the holding time at the crystallization treatment temperature is 1 - 10 hours, preferably 3 - 6 hours.

38. The manufacturing method of the glass-ceramic article according to claim 35, characterized in that, The crystallization process includes the following steps: performing a nucleation process treatment at a first temperature, and then performing a crystal growth process treatment at a second temperature.

39. The manufacturing method of the glass-ceramics product according to claim 38, characterized in that, The crystallization process includes: the first temperature is 600 - 700 °C, the second temperature is greater than 700 °C but less than or equal to 800 °C, the holding time at the first temperature is 1 - 6 hours, and the holding time at the second temperature is 2 - 5 hours.

40. The manufacturing method of the glass-ceramic article according to claim 35, characterized in that, The chemical strengthening process includes: immersing the glass-ceramic in a molten Na-salt bath at 350 - 470 °C for 1 - 36 hours. Preferably, the temperature range is 400 - 460 °C, and the time range is preferably 2 - 15 hours; and / or immersing the glass-ceramic in a mixed salt bath of molten K-salt and Na-salt at 360 - 450 °C for 1 - 36 hours. Preferably, the time range is 2 - 24 hours.

41. The manufacturing method of the glass-ceramics according to any one of claims 16 to 30, characterized in that, The method includes the following steps: forming a base glass, and then forming a glass-ceramic from the base glass through a crystallization process.

42. The manufacturing method of the glass-ceramics according to claim 41, characterized in that, The forming of the base glass includes the following steps: Mix the raw materials evenly according to the component ratio, then put them into a crucible, and melt them in an electric furnace or a gas furnace within a temperature range of 1350 - 1550 °C for 5 - 24 hours. Preferably, the melting temperature is 1450 - 1550 °C. Then, after clarification, homogenization, forming, and annealing, the base glass is obtained. The clarification temperature is greater than 1550 °C but less than or equal to 1650 °C, and the annealing temperature is 450 - 600 °C.

43. The manufacturing method of the glass-ceramics according to claim 41, characterized in that, The crystallization process includes the following steps: heating to a specified crystallization treatment temperature, after reaching the crystallization treatment temperature, maintaining the temperature for a certain period of time, and then cooling down. The crystallization treatment temperature is 600 - 800 °C, preferably 650 - 750 °C, and the holding time at the crystallization treatment temperature is 1 - 10 hours, preferably 3 - 6 hours.

44. The manufacturing method of the glass-ceramics product according to claim 41, characterized in that, The crystallization process includes the following steps: performing a nucleation process treatment at a first temperature, and then performing a crystal growth process treatment at a second temperature.

45. The manufacturing method of the glass-ceramics product according to claim 44, characterized in that, The crystallization process includes: the first temperature is 600 to 700 °C, the second temperature is greater than 700 °C but less than or equal to 800 °C, the holding time at the first temperature is 1 to 6 hours, and the holding time at the second temperature is 2 to 5 hours.

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