1417 results about "Glass-ceramic" patented technology

The application discloses a transparent strengthened glass ceramic with high stress depth, which contains spinel crystals and zirconia crystals in a crystal phase of the strengthened glass ceramic, and does not contain Li-containing crystals; the strengthened glass ceramic has a compressive stress region extending from a surface thereof to a compression depth, a compressive stress layer depth DOL_0 of the strengthened glass ceramic is greater than or equal to 14% of a thickness of the strengthened glass ceramic, and a tensile stress line density of the strengthened glass ceramic is greater than or equal to 25000 MPa / mm. By introducing more Li ions and Na ions into a spinel glass ceramic component, the prepared transparent spinel glass ceramic can be chemically strengthened, a transparent strengthened glass ceramic with high CS, DOL_0, CT_AV and CT_LD is obtained, and the strengthened glass ceramic exhibits excellent drop resistance.

The invention relates to a transparent lithium aluminum silicate glass ceramic, as well as the use of a transparent lithium aluminum silicate glass ceramic.

The invention provides chemically strengthened glass ceramics, cover plate glass, electronic equipment and a glass device, and belongs to the technical field of glass ceramics. High-lithium-content microcrystalline glass which has specific composition and takes lithium disilicate as a main crystalline phase meets specific stress characteristics after chemical strengthening treatment, and particularly, a relational expression A of the molar percentage content of ZrO2 in the microcrystalline glass and the stress characteristics meets specific requirements, namely, the range requirement of a relational expression B is met; according to the invention, the problem of'surface cracking 'of the prepared chemically-strengthened glass ceramic can be effectively overcome, and the chemically-strengthened glass ceramic can be ensured to have high mechanical strength performance, so that the chemically-strengthened glass ceramic can be ensured to have excellent damage resistance.

Devices, apparatuses, and methods are disclosed that include a glass or glass ceramic substrate with a bleached region and an unbleached region. Examples include a substrate with a region that transmits IR wavelength light, and a region that is substantially opaque to IR light. Examples include additional opacity in some or all regions to visible wavelength light and / or UV wavelength light.

Lithium-aluminum-silicon glass ceramic and a preparation method therefor. The addition of a V2O5 and Ta2O5 composite nucleating agent reduces the crystallization temperature of glass and improves the stability of the glass; a doping agent, such as CeO2, significantly accelerates the growth speed of crystals, thereby nucleating and crystallizing the glass at relatively low temperatures and improving the transmittance of the glass; a co-solvent, such as B2O3, reduces the high-temperature viscosity of the glass, thereby reducing the activation free energy during the glass crystallization process and facilitating the crystallization and processing molding; a 3D hot bending process comprises the stages of preheating, pressurizing, annealing and cooling, a copper mold transfers heat to the glass by means of heat conduction, such that the glass is evenly heated during the heating process, and natural cooling can prevent the problem of glass being broken or having an inaccurate dimensional accuracy caused by excessive fast cooling; and the graft modification on the surface of the glass significantly improves the hydrophobic property of the glass, such that the comprehensive performance of the glass is good.

The invention relates to high-strength microcrystalline glass and a preparation method thereof, and belongs to the technical field of composite materials. The high-strength glass ceramic is prepared from cullet, titanium dioxide, spodumene, potassium carbonate, lanthanum oxide, boron nitride, barium oxide, zirconium oxide and modified carbon fibers as raw materials, and the invention further discloses a formula of the raw materials. According to the high-strength glass ceramic, the modified carbon fibers serve as a reinforcing phase, the problem that the glass ceramic has brittleness and is prone to breakage is solved, the modified carbon fibers and a glass ceramic base material are good in phase property, and therefore the prepared glass ceramic is excellent in mechanical performance, the highest impact toughness can reach 3.91 KJ / cm < 3 >, the highest compressive strength can reach 371.28 MPa, and the glass ceramic can be used as a high-strength glass ceramic. The breaking strength can reach 46.93 MPa to the maximum, and in addition, the modified carbon fiber can also improve the thermal stability of the microcrystalline glass and solve the yield influence caused by thermal stress.

Porous structures are made from compositions that include hollow glass bodies and an inorganic powder. The inorganic powder may act as a rigid frame member, a crystallization agent, or both, which reduces the shrinkage of the porous structures during firing. The porous structures made therefrom have an open porosity of greater than 70% and reduced shrinkage of less than 10% compared to the green structures prior to firing. Methods for firing the green structures made from the compositions are also disclosed, the firing methods including reducing a temperature ramping rate of the green structures during a crystallization temperature range of the glass of the hollow bodies.

The invention relates to a transparent lithium aluminum silicate glass ceramic, as well as the use of a transparent lithium aluminum silicate glass ceramic.

Solid electrolyte compositions and solid-state batteries are disclosed, which comprise a solid electrolyte layer including a sulfide-containing solid-state electrolyte material and a compound of Chemical Formula 1. The sulfide-containing solid-state electrolyte material includes but is not limited to Li6PS5Cl (“LPSC”), an LPS-based glass or glass ceramic of formula xLi2S·yP2S5, wherein x+y=1, or an argyrodite-based sulfide-based solid electrolyte or formula Li6PS5X, wherein X═Cl, Br, or I) or Li6-yPS5-yCl1+y, where y is <1. In some aspects, the compound of Chemical Formula 1 is sodium 3-mercapto-1-propanesulfonate (3M1P).

The invention provides chemically strengthened glass ceramics, cover plate glass, electronic equipment and a glass device, and belongs to the technical field of glass ceramics. The tensile stress linear density value of the chemically strengthened glass ceramic and the ratio of the stress integral of the tensile stress layer close to the middle position to the thickness t meet a specific difference relationship, so that the internal stress distribution of the chemically strengthened glass ceramic can be ensured to be safer under the condition of ensuring that the chemically strengthened glass ceramic has a relatively high overall stress level; therefore, the chemically strengthened microcrystalline glass can be kept in a safe stress state.

An article includes a glass, glass-ceramic, or ceramic substrate with at least one surface that has a textured region. The textured region includes a plurality of topographical features that define voids opening towards the surface. The article further includes a coating that comprises a cured silicon oxide (SiOx) material positioned in a pattern on at least a portion of the textured region to fill the voids at least partially. The cured SiOx material planarizes the textured region and modifies surface attributes such as haze, distinctness-of-image (DOI), surface roughness, and abrasion performance. A method is disclosed for planarizing a textured surface by jetting a solution comprising a SiOx material and a solvent in a pattern on a portion of the textured surface. The SiOx solution is cured to form a coating comprising the cured SiOx material.

The invention relates to microcrystalline glass, a preparation method, a microcrystalline glass product and electronic equipment, and belongs to the technical field of microcrystalline glass preparation, and the microcrystalline glass comprises the following components in percentage by mole of oxides: 30-55% of Al2O3; caO: 25%-55%; 8%-20% of alkaline earth metal oxide; 3%-15% of alkali metal oxide; 0%. 10% of B2O3; alkaline earth metal ions and alkali metal ions are added into a glass system composed of calcium and aluminum, so that the glass forming performance of the glass ceramic can be effectively improved under the condition that the high mechanical strength of the glass ceramic is kept, and the glass melting temperature and energy consumption are reduced.

The present invention provides a strengthened glass ceramic and a preparation method and application thereof, the strengthened glass ceramic contains a petalite crystal phase and a lithium disilicate crystal phase, the strengthened glass ceramic has a compressive stress layer formed by chemical strengthening on the surface and a tensile stress layer inside, and the strengthened glass ceramic satisfies: (CS50 / DOL0) > = 0.332 * (surface CS / CTCV); dOL0 is greater than or equal to 0.187 t; 1.01% > = delta alpha > = 0.65%, and delta alpha = 5 * 10 <-5 > * CTAV + 0.0026. Under the condition of 80-mesh abrasive paper, the average height of the reinforced microcrystalline glass in falling failure can reach 1.30-1.80 m. Compared with the prior art, the reinforced microcrystalline glass disclosed by the invention has the advantages that the breaking resistance on rough ground is obviously improved, and the reinforced microcrystalline glass can be used as a protective cover plate material of intelligent terminal products such as mobile phones.

A method for manufacturing a lithium disilicate glass ceramic with gradient properties by using photocuring additive manufacturing, the method comprising: performing wet mixing on a basic glass powder with a solvent, ball milling same until uniformity, drying same, then performing thermal treatment to reach a molten state, then quenching same to form original particles, and then granulating same to obtain lithium disilicate ceramic particles; respectively preparing n groups of pastes with gradually-changing colors and translucencies from n groups of the lithium disilicate ceramic particles, said paste preparation comprising: adding 3Y-TZP powder, a coloring agent and lithium disilicate ceramic particles to a resin mixture, mixing same, rolling same and performing vacuum defoaming to obtain a paste; adding the n groups of pastes in sequence into an additive manufacturing device to undergo photocuring forming, so as to obtain a green body; after the green body is cleaned and dried, degreasing the green body, and sintering same; and finally under a vacuum high-temperature condition, subjecting the sintered sample to an ion exchange reaction with a molten nitrate in a flowing state, so as to obtain a product.

The invention provides a preparation method of microcrystalline glass, chemically strengthened microcrystalline glass and a microcrystalline glass product, and relates to the technical field of materials, the crystalline phase of the microcrystalline glass comprises petalite, lithium disilicate and lithium silicate, and the crystallinity is less than or equal to 90%; the ratio of the content of petalite to the content of total crystals is 45-60%, the ratio of the content of lithium disilicate to the content of total crystals is 30-45%, the ratio of the content of lithium silicate to the content of total crystals is less than or equal to 13%, and the ratio of the total content of petalite and lithium disilicate to the content of total crystals is greater than or equal to 75%. Through the implementation of the application, the contents and crystal sizes of different crystal phases are controlled at a specific ratio, so that the glass ceramic product can be ensured to have excellent optical performance while having good mechanical strength performance.

The invention discloses an intelligent garbage classification and recovery method which comprises the following steps: in the process that a buffer hopper receives garbage, pulls a garbage bag apart, supplies the garbage to the starting end of a conveying belt and a conveying display belt conveys the garbage at the starting end to the position below a camera, the garbage is spread, and the camera shoots an actual image of the spread garbage; the central processing unit compares actual images with a teaching garbage pattern set to determine attributes, positions and sorting sequences of all garbage, paper plastic, glass ceramic and auxiliary garbage at the tail end of the conveying display belt are thrown into corresponding garbage cans through the sorting mechanical arms respectively, and main garbage is poured into a main garbage can through the tail end of the conveying display belt; and the metal garbage at the tail end of the transmission display belt is transferred to a metal recovery box through magnetic attraction. Compared with the prior art, volunteers do not need to be on duty, the garbage is thrown, dispersed and classified at any time, and an intelligent screening mode is adopted, so that various types of garbage are rapidly distributed, the operation cost of garbage classification and recycling is reduced, the garbage sorting pressure of citizens is relieved, and cyclic utilization of the household garbage is substantially achieved.

A solid electrolyte material comprises Li, T, X and A wherein T is at least one of P, As, Si, Ge, Al, and B; X is one or more halogens or N; A is one or more of S and Se. The solid electrolyte material has peaks at 17.8°±0.75° and 19.2°±0.75° in X-ray diffraction measurement with Cu-Kα(1,2)=1.5418 Å and may include glass ceramic and / or mixed crystalline phases.

The present invention provides a Ge-As-Se-CsCl glass ceramic and a preparation method thereof, the Ge-As-Se-CsCl glass ceramic comprises a matrix and CsCl crystals uniformly dispersed in the matrix, the matrix is Ge-As-Se chalcogenide glass, the CsCl crystals are uniformly dispersed in the matrix in a nanometer form, the molar composition of the Ge-As-Se-CsCl glass ceramic is represented by a chemical formula: (1-y) Ge0. 2AsxSe (0.8-x)-yCsCl, x is in a range of 0.1-0.7, y is in a range of 0.05-0.2, y is in a range of 0-0.2, and y is in a range of 0-0.2. Compared with the prior art, the Ge-As-Se-CsCl glass ceramic prepared by two-stage heat treatment crystallization disclosed by the invention has the advantages that on one hand, the Ge-As-Se-CsCl glass ceramic has good infrared permeability, the hardness of the Ge-As-Se-CsCl glass ceramic can be greatly improved, and the application range of chalcogenide glass ceramic is widened.

The present invention provides a strengthened glass ceramic and a preparation method and application thereof, the strengthened glass ceramic contains a petalite crystal phase and a lithium disilicate crystal phase, the strengthened glass ceramic has a compressive stress layer formed by chemical strengthening on the surface and a tensile stress layer inside, and the strengthened glass ceramic satisfies: (CS50 / DOL0) > = 0.332 * (surface CS / CTCV); dOL0 is greater than or equal to 0.187 t; 1.01% > = delta alpha > = 0.65%, and delta alpha = 5 * 10 <-5 > * CTAV + 0.0026. Under the condition of 80-mesh abrasive paper, the average height of the reinforced microcrystalline glass in falling failure can reach 1.30-1.80 m. Compared with the prior art, the reinforced microcrystalline glass disclosed by the invention has the advantages that the breaking resistance on rough ground is obviously improved, and the reinforced microcrystalline glass can be used as a protective cover plate material of intelligent terminal products such as mobile phones.

The invention discloses a multiphase coexisting high-entropy glass ceramic material and a preparation method thereof, and the method comprises the following steps: step 1, uniformly mixing Na2CO3, K2CO3, BaCO3, SrCO3, CaCO3, Bi2O3, TiO2, Nb2O5 and SiO2 to obtain a mixture A; 2, the mixture A is added into a crucible preheated to 1200 DEG C, then the temperature is increased to 1450 DEG C, heat preservation is conducted to enable the mixture A to be completely molten till no bubble is generated, a melt is obtained, then the melt is poured into a mold preheated to 300 DEG C, and a product B is obtained after forming; 3, transferring the product B to an annealing furnace which is heated to 500-600 DEG C in advance, preserving heat, and cooling along with the furnace to obtain a glass sample; and step 4, putting the glass sample into a muffle furnace, heating from room temperature to 850-950 DEG C at a heating rate of 5 DEG C / min, preserving heat, crystallizing the glass sample, and cooling along with the furnace to obtain the multi-phase coexisting high-entropy glass ceramic material. The preparation method is simple in process, and the prepared high-entropy glass ceramic has high breakdown strength and excellent energy storage density and energy storage efficiency.

Glass-ceramic containers and methods of making glass ceramic containers with high transparency and fracture toughness suitable for use as, for example a beverage or food container, such as for example, a baby bottle or personal hydration bottle. The glass ceramic containers may have an average wall thickness in the range of 1 mm to 2.5 mm and a fracture toughness of 1 MPa*m{circumflex over ( )}½ or more.

The invention relates to a sulfide-based solid electrolyte with a glass-ceramic structure, comprising or consisting of the general chemical formula (I): Li7P2S8X1xX2yX3z, formula (I), wherein X1, X2, and X3 are each independently selected from the group consisting of Cl, Br, and I; where: x > 0, y > 0, and z ≥ 0, and 1 < x + y + z ≤ 1.7; with the proviso that for z > 0, X1 ≠ X2 ≠ X3 and X1 ≠ X3, and for z = 0, X1 ≠ X2. The sulfide-based solid electrolyte with a glass-ceramic structure is characterized by a similarly high electrochemical performance, such as high ionic conductivity and (electro)chemical stability, compared to similar crystalline sulfide-based solid electrolytes (LGPS, argyrodite).However, the inventive sulfide-based solid electrolyte with a glass-ceramic structure can be produced at lower sintering temperatures and in a shorter time than the known crystalline sulfide-based solid electrolytes, which significantly reduces the time, energy and cost expenditure.

A glass-ceramic article comprises silica, lithia, phosphorus pentoxide, and zirconia in amounts that, when heat treated, provide a glass-ceramic including a lithium disilicate (L2Si2O5) crystalline phase. The glass-ceramic may have high fracture toughness, transparency, hardness, and may be strengthen via ion-exchange.

The invention belongs to the technical field of sealants, and particularly relates to a heat-conducting flame-retardant sealant for a power battery and a preparation method thereof.The heat-conducting flame-retardant sealant for the power battery is prepared through collaborative design of a composite heat-conducting filler and a polyglutamic acid-melamine cyanurate-calcium hydrophosphate composite flame retardant and combination of magnetic field dispersion, ultrasonic blending and silane coupling agent interface optimization technologies; the heat-conducting and flame-retardant properties of the material are obviously improved. A lithium silicate glass ceramic precursor is subjected to surface modification through phosphorus oxychloride, the combination of a reinforcing filler and a matrix is enhanced, a flexible cross-linked network is constructed by amino-terminated polyether and an isocyanate curing agent, and the mechanical strength and thermal stability are guaranteed. The sealant inhibits combustion propagation and reduces toxic gas release through a multi-stage reaction mechanism during thermal runaway, meanwhile, the sealant adapts to high-frequency vibration and thermal cycle working conditions of a battery module, and the preparation process realizes synergistic enhancement of heat conduction and flame retardance through gradient stirring, vacuum defoaming and filler uniform dispersion technologies.

A method of bleaching a glass-ceramic article is disclosed. The method includes illuminating a first portion of the body by directing a light beam from a laser to a thickness of the glass-ceramic article body to heat the first portion and form a first aperture therein. The body is configured to have an amorphous silicate glass phase, a crystalline phase, and a body transmittance. The first aperture is configured to have a first transmittance greater than the body transmittance at a first wavelength of about 350 nm to about 2500 nm. The light beam from the laser is configured to include a bleaching wavelength selected from a laser band within which residual absorption is continuously present in the aperture after illumination at the bleaching wavelength.

The invention discloses fluorescent glass ceramic, a preparation method thereof and a luminescent device, and belongs to the technical field of luminescent materials. The fluorescent glass ceramic comprises glass powder and fluorescent powder, the glass powder comprises zinc borosilicate glass powder; the zinc borosilicate glass powder comprises the following components in percentage by mole: 5%-20% of SiO2, 10%-35% of B2O3, 20%-65% of ZnO, 0.3%-15% of P2O5, 2%-20% of RO and 0.1%-15% of R2O, RO is selected from at least one of MgO, CaO, SrO and BaO, and R2O is selected from at least one of Li2O, Na2O and K2O; the fluorescent powder comprises blue-green fluorescent powder; the emission peak wavelength of the blue-green fluorescent powder is 480-510 nm; based on the total mass of the glass powder and the fluorescent powder, the mass percentage content of the glass powder is 30-80%, and the mass percentage content of the fluorescent powder is 20-70%. The fluorescent glass ceramic is high in reliability and can be applied to high-power light emitting, a light emitting device formed by combining the fluorescent glass ceramic and a proper light source can provide an accurate azure light emitting effect, and the requirements in application scenes with harsh color requirements are met.

The invention relates to the technical field of preparation of microcrystalline glass, in particular to lithium metasilicate microcrystalline glass and a preparation method thereof, the lithium metasilicate microcrystalline glass comprises the following components in percentage by mass: 62%-78% of SiO2, 3%-10% of Al2O3, 4%-18% of Li2O, 0-5% of K2O, 0.6%-7.5% of P2O5 and 2%-15% of ZrO2, the value of (SiO2 + Al2O3) / Li2O) is 6-15, the value of Al2O3 / Li2O is 0.7-1.3, and P2O5 + ZrO2 is less than 8%. According to the technical scheme, by designing a proper basic glass material formula, a heat treatment crystallization process system and a chemical strengthening process, the high-strength transparent glass ceramic with lithium metasilicate as a main crystal phase is obtained; the glass has the characteristics of large surface compressive stress, high strength, strong ion exchange capacity, excellent impact resistance, excellent falling resistance and the like, so that the application requirement of the glass as a cover plate on an electronic product is met. The problems that in the prior art, glass ceramics are insufficient in strength and transparency and cannot meet the requirements of electronic device protection glass cover plates are solved.

The embodiment of the invention provides a glass ceramic sulfide electrolyte as well as a preparation method and application thereof, and relates to the technical field of batteries. In the preparation method, Li2S, P2S5, WO3 and LiI are mixed in an inert gas environment to obtain precursor powder, then the precursor powder is subjected to amorphization treatment to obtain a solid electrolyte powder precursor, finally the solid electrolyte powder precursor is sintered in the inert gas environment to obtain the glass ceramic sulfide electrolyte # imgabs0 #, x is larger than or equal to 0.001 and smaller than or equal to 0.2, and 1t is larger than or equal to 0.001. Yt; Yt; and 0.9. Through the preparation method, the prepared glass ceramic sulfide electrolyte has low Young modulus, high ionic conductivity and good interface stability, and meets the requirements of low circulating pressure and low preparation pressure of an all-solid-state battery.

The invention discloses a lithium ion sieve, chemically strengthened microcrystalline glass and electronic equipment, the lithium ion sieve comprises the following components by molar percentage: 40% < = SiO2 < = 55%, 15% < = Al2O3 < = 30%, 20% < = Na2O < 30%, 0% < = MgO < = 10%; or the lithium ion sieve comprises the following components: 35% < = SiO2 < = 45%, 10% < = Al2O3 < = 20%, 30% < = Na2O < = 45%, and La2O3 and / or ZrO2, and the molar percentage of La2O3 + ZrO2 is greater than 0% and < = 25%. The lithium ion sieve provided by the invention has high thermal stability and high lithium absorption efficiency, is not easy to soften or decompose in the process of being matched with molten salt for use, is beneficial to maintaining the pH value of the molten salt, and can support a chemical strengthening process of glass ceramics at a higher temperature.

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.