BNNTs reinforced ceramic slurry and ceramic forming method based on reinforced ceramic slurry

Abstract

The BNNTs reinforced ceramic slurry comprises ceramic powder, a monomer / cross-linking agent combination, a ceramic powder surface modifier, boron nitride nanotubes, a dispersing agent, a sintering aid, a photoinitiator and a light absorbing agent, the ceramic powder is aluminum oxide, and the particle size D50 of the ceramic powder is 0.02-1 [mu] m; the diameter range of the boron nitride nanotube is 10 to 100 nm; the monomer / cross-linking agent is acrylic acid, the ceramic powder surface modifier is a KH series, and the dispersing agent is a DisperBYK series; the sintering aid is Y2O3, the photoinitiator is Irgaure819, and the light absorbing agent is Tinuvin 171; the ceramic forming method based on the reinforced ceramic slurry comprises five steps. The slurry prepared by the invention can effectively offset high viscosity brought by TMPTA and ceramic powder, improves material dispersibility, reduces viscosity, enhances mechanical strength of a cured green body, ensures long-term storage stability of the slurry and Z-axis resolution of printing equipment, reduces friction force and agglomeration among ceramic powder particles, and improves the quality of the ceramic powder. And the mechanical property of the finished ceramic can be improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of printing auxiliary materials and finished printing technology, and particularly relates to a BNNTs reinforced ceramic slurry and a ceramic forming method based on the reinforced ceramic slurry. BACKGROUND

[0002] With the development of science and technology, new requirements are put forward for advanced ceramics in high-tech fields. On the one hand, these fields have higher requirements for the mechanical strength, wear resistance, corrosion resistance, thermal performance and other single or comprehensive material properties of ceramic materials, and single ceramic materials have been difficult to meet the requirements, and the research and development of ceramic matrix composites needs to be turned to. On the other hand, in order to pursue high performance, multi-function, light weight and other indicators, the structure of ceramic components is becoming more and more precise and complex, and the disadvantages of traditional ceramic processing technology such as high energy consumption, long processing cycle and low material utilization rate are gradually revealed. At present, additive manufacturing processing forming technology represented by photocuring 3D printing is gradually applied to the processing and forming of ceramic components. Photocuring 3D printing ceramic processing and forming technology is to use photocuring 3D printing ceramic slurry mixed by photosensitive resin and ceramic powder, and to form three-dimensional structure ceramic embryo under the irradiation of specific light source, and the ceramic embryo is subjected to subsequent heat treatment (debinding and sintering) to obtain dense ceramic components.

[0003] In photocuring 3D printing ceramic processing and forming, the ceramic powder solid content is generally required to be between 40 – 60 vol% due to the requirement for the flowability of the slurry, which makes it difficult to achieve the level of traditional process density of the ceramic product after sintering, resulting in a decrease in mechanical strength, and too high solid content may lead to poor flowability of the slurry, making it difficult to spread and solidify uniformly. The mainstream photocuring 3D printing technology adopts a face-to-face processing method, which causes the layer-to-layer connection to be easy to be a crack source and cause fracture failure due to the stepped morphology of the finished product. Although the new photocuring 3D printing technology can realize continuous printing, it puts forward higher requirements for the flowability and viscosity of the slurry. Therefore, photocuring 3D printing ceramic technology has significant advantages in the manufacturing of complex structures, but there are still many technical bottlenecks in the preparation of slurry, printing process and performance of finished product. SUMMARY

[0004] In order to overcome the existing light-cured 3D printer for ceramic processing forming due to the limitations of technology, there are disadvantages as described in the background art, the present application provides a kind of BNNTs reinforced ceramic slurry and ceramic forming method based on reinforced ceramic slurry under the joint action of related material and process, the slurry prepared by the slurry is applied to the light-cured 3D printer, which can effectively offset the high viscosity caused by TMPTA and ceramic powder, greatly improve the material dispersibility, reduce the viscosity, and significantly enhance the mechanical strength of the green body after curing, ensure the long-term storage stability of the slurry and the Z-axis resolution of the printing equipment, reduce the friction between the ceramic powder particles, and realize the mechanical property improvement of finished ceramic.

[0005] The technical scheme adopted by the present application to solve its technical problems is: A kind of BNNTs reinforced ceramic slurry, comprising the following components: ceramic powder, monomer / crosslinking agent combination, ceramic powder surface modifier, boron nitride nanotube, dispersing agent, sintering aid, photoinitiator, light absorber;The ceramic powder is alumina, and the particle size of the ceramic powder is D50 0.02-1 μm;The diameter of the boron nitride nanotube ranges from 10 to 100 nm, the length ranges from 1 to 100 μm, and the addition amount is 0.1-1 wt%;The monomer / crosslinking agent is acrylic acid, the ceramic powder surface modifier is KH series, and the dispersing agent is DisperBYK series;The sintering aid is Y2O3, the photoinitiator is Irgacure819, and the light absorber is Tinuvin 171.

[0006] Further, the ceramic powder can also use one or more combinations of 3mol% yttrium-stabilized zirconia, zirconia toughened alumina, silicon dioxide, silicon nitride, aluminum nitride, silicon carbide and hydroxyapatite.

[0007] Further, the monomer / crosslinking agent can also use one or more combinations of 1,6-hexanediol diacrylate, 4-hydroxybutyl acrylate, hydroxyethyl methacrylate, trimethylolpropane triacrylate, pentaerythritol tetraacrylate, polyethylene glycol diacrylate, diethylene glycol dimethacrylate, 2-ethylhexyl acrylate, isobornyl acrylate, 2-hydroxyethyl acrylate, pentaerythritol triacrylate, tris (3-mercaptopropionic acid) pentaerythritol ester, tetra (3-mercaptopropionic acid) pentaerythritol ester, acrylamide and N,N'-methylene acrylamide.

[0008] Further, the ceramic powder surface modifier can also use one of KOS110, Solsperse 41000, TritonX-100, oleic acid and sebacic acid, and the sintering aid can also use one or more combinations of Y2O3, MgO, Cu2O, SiO2, CaO, CeO2, TiO2 and Al2O3.

[0009] Further, the photoinitiator can also use one of TPO, Irgacure 2100, Irgacure 1173, Irgacure 2959 or camphorquinone + ethyl p-dimethylaminobenzoate combination, and the light absorber can also use Sudan I.

[0010] The ceramic forming method based on the reinforced ceramic slurry comprises the following steps: S1, respectively weighing the monomer / crosslinking agent, dispersing agent, photoinitiator, light absorber, sintering aid, and boron nitride nanotube, and placing them in a container, and using an eccentric planetary mixer to stir and mix to prepare a photosensitive resin premix; S2, weighing the ceramic powder modified by the surface modifier, and adding it to the photosensitive resin premix twice, and using an eccentric planetary mixer to stir and mix after each addition to obtain a premixed ceramic slurry; S3, using a three-roll grinder to further grind and disperse the premixed ceramic slurry, and then using a vacuum defoaming machine to defoam, to complete the preparation of the BNNTs reinforced ceramic slurry; S4, using a light curing 3D printer corresponding to the working wavelength of the photoinitiator to print the BNNTs ceramic slurry into an embryo; S5, after the embryo is degreased and sintered, the final BNNTs reinforced ceramic product is obtained.

[0011] Further, in steps S1 and S2, the eccentric planetary mixer performs eccentric mixing according to the stirring parameters of 30 s @ 1000 rpm, 30 s @ 1500 rpm, and 30 s @ 2000 rpm.

[0012] Further, in step S3, the three-roll grinder grinds and disperses the premixed ceramic slurry under the conditions of 50 RPM and 1 μm gap, and the vacuum defoaming machine defoams under the conditions of 20 kPa pressure and 1500 rpm rotation speed for 180 s.

[0013] Further, in step S5, the equipment used is a box furnace, and the atmosphere used is air.

[0014] Compared with the prior art, the application has the beneficial effects that: under the joint action of related materials and processes, the slurry prepared by the application is applied to a photocuring 3D printer, the combination of monomers / crosslinking agents effectively offsets the high viscosity brought by TMPTA and ceramic powder; the silane coupling agent KH-570 can connect the ceramic powder to the final resin network through a chemical bond, greatly improves the dispersibility, reduces the viscosity, and can significantly enhance the mechanical strength of the green body after curing; the dispersant, through the physical steric hindrance effect, cooperates with the surface modifier to prevent the ceramic powder particles from agglomerating due to the mutual attraction of van der Waals force, thereby ensuring the long-term storage stability of the slurry; the photoinitiator can initiate the free radical polymerization reaction required for printing under the irradiation of the 3D printer; the light absorber itself competes with the photoinitiator for the incident photons in the system, which can ensure that the light of the 3D printer is accurately limited within the thin layer that needs to be cured, thereby avoiding over-curing and ensuring the printing Z-axis resolution of the 3D printer; the BNNTs (boron nitride nanotubes) can reduce the friction between the ceramic powder particles, cooperate with the dispersant, promote the effect of the dispersant, thereby further reduce agglomeration, promote grain refinement, improve density, promote phase change toughening and mechanical failure mechanism, and realize the improvement of the mechanical properties of the finished ceramic by the high strength of the BNNTs itself. In summary, the application has good application prospect. BRIEF DESCRIPTION OF DRAWINGS

[0015] The technical solutions of the application are further described below in combination with the drawings and examples.

[0016] Figure 1 is a micro-morphology diagram of BNNTs used in the embodiments of the application; Figure 2 is the degumming and sintering curve of zirconia in the embodiments of the application; Figure 3 is a micro-morphology diagram of the zirconia ceramic finished product in the embodiments of the application; Figure 4 is the degumming and sintering curve of alumina in the embodiments of the application; Figure 5 is a micro-morphology diagram of the alumina ceramic finished product in the embodiments of the application; Figure 6 is a process block diagram of the ceramic forming method based on the reinforced ceramic slurry. DETAILED DESCRIPTION

[0017] Figure 6As shown in Example 1, a BNNTs reinforced ceramic slurry comprises the following components: BNNTs (boron nitride nanotubes), monomer / crosslinker combination, zirconia powder, surface modifier, dispersant, photoinitiator, light absorber. The monomer / crosslinker combination is 1,6-hexanediol diacrylate (HDDA), hydroxyethyl methacrylate (HEMA), trimethylolpropane triacrylate (TMPTA), with a volume ratio of 6:3:1; the monomer / crosslinker combination constitutes the “skeleton” part of the printed green body after ceramic shaping, which is dominated by the high-density three-dimensional crosslinked network built by TMPTA, with HDDA and HEMA as efficient active diluents, effectively offsetting the high viscosity brought by TMPTA and ceramic powder. The zirconia powder is 3 mol% yttria-stabilized zirconia, with a D50 of 90 nm (zirconia powder as the ceramic source in photocuring 3D printing), and the zirconia powder can achieve stable and uniform dispersion in the monomer / crosslinker combination after being modified by the surface modifier. The surface modifier is silane coupling agent KH-570; the silane coupling agent KH-570 can connect the ceramic powder to the final resin network through chemical bonds, which greatly improves the dispersibility, reduces the viscosity, and significantly enhances the mechanical strength of the ceramic shaping green body after curing. The volume ratio of the zirconia powder modified by the surface modifier to the monomer / crosslinker combination is 1:1. The dispersant is DisperBYK-111, with a dosage of 2 wt% of the ceramic powder; the dispersant, through physical steric hindrance effect, synergizes with the surface modifier to prevent the ceramic powder particles from agglomerating due to Van der Waals force attraction, thereby ensuring the long-term storage stability of the slurry. The photoinitiator is Irgacure 819, with a dosage of 1 wt% of the total mass; the photoinitiator is used to initiate the free radical polymerization reaction required for printing under the illumination of the 3D printer. The light absorber is Tinuvin 171, with a dosage of 0.2 wt% of the total mass; the light absorber itself does not participate in the reaction, but in the system it forms a competitive absorption with the photoinitiator for the incident photons of the 3D printing equipment, ensuring that the light energy is precisely limited within the thin layer that needs to be cured, thereby avoiding over-curing and ensuring the Z-axis resolution of the 3D printer. The diameter of the BNNTs is 80-100 nm, the length is ≥80 μm, and the dosage is 0.1 wt% of the total mass (the morphology of the BNNTs is shown in FIG. 1). The BNNTs are uniformly dispersed in the monomer / crosslinker combination, and the BNNTs are connected to the final resin network through chemical bonds, which greatly improves the dispersibility, reduces the viscosity, and significantly enhances the mechanical strength of the ceramic shaping green body after curing. Figure 1The reinforcing effect of BNNTs is mainly reflected in the reduction of friction between ceramic powder particles by the "support-lubrication" effect of one-dimensional nanostructure; synergistic effect with dispersants to promote the effect of dispersants; BNNTs play a "bridge" or "isolation" role at the ceramic powder interface, thereby further reducing agglomeration; by introducing BNNTs, affect ceramic sintering (promote grain refinement, improve density, promote phase transformation toughening) and mechanical failure mechanism (high interfacial energy of BNNTs-ceramic interface, crack deflection and bridging effect), and the mechanical properties of the finished ceramic are improved by the high strength of BNNTs itself.

[0018] Figure 6 As shown in FIG. 1, the ceramic forming method based on reinforced ceramic slurry of Example 1 includes the following steps: (1) 2.426 g of HEMA, 1.212 g of HDDA, and 0.436 g of TMPTA, 0.478 g of DisperBYK-111, 0.282 g of Irgacure 819, 0.056 g of Tinuvin 171, and 0.028 g of BNNTs are weighed into a container, and an eccentric planetary mixer is used for eccentric mixing according to the stirring parameters of 30 s @ 1000 rpm, 30 s @ 1500 rpm, and 30 s @ 2000 rpm to prepare a photosensitive resin premix solution. (2) 23.4 g of 3 mol% yttria-stabilized zirconia powder is added to the photosensitive resin premix solution in two portions, and after each addition, an eccentric planetary mixer is used for eccentric mixing according to the stirring parameters of 30 s @ 1000 rpm, 30 s @ 1500 rpm, and 60 s @ 2000 rpm to obtain a premixed ceramic slurry. (3) A three-roll mill is used to further grind and disperse the premixed ceramic slurry at 50 RPM and a 1 μm gap setting, and then a vacuum degassing machine is used to degas at 20 kPa and 1500 rpm for 180 s to complete the preparation of the BNNTs reinforced zirconia slurry. (4) The BNNTs ceramic slurry is printed into a green body using a photocuring 3D printer, and the specific photocuring 3D printer has a working wavelength of 385 nm. (5) After the green body is degreased and sintered, the final BNNTs reinforced zirconia ceramic product is obtained, and the specific degreasing and sintering curve is as shown in FIG. 2. Figure 2 As shown in FIG. 3, the equipment used is a box furnace, and the atmosphere used is air; the microstructure of the obtained zirconia ceramic product is as shown in FIG. 3.

[0019] Figure 6As shown in Example 2, a BNNTs-reinforced ceramic slurry comprises the following components: BNNTs, a monomer / crosslinking agent combination, alumina powder, surface modifier, dispersant, sintering aid, photoinitiator, and light absorber. The monomer / crosslinking agent combination consists of 1,6-hexanediol diacrylate (HDDA) and trimethylolpropane triacrylate (TMPTA), with a volume ratio of 2:8. In this combination, the monomer / crosslinking agent forms the "skeleton" of the cured printed ceramic preform. The high-density three-dimensional crosslinking network constructed by TMPTA dominates, while HDDA acts as a highly efficient reactive diluent, effectively offsetting the high viscosity introduced by TMPTA and the ceramic powder. The alumina powder is spherical alumina with a D50 of 400 nm; specifically, this alumina powder serves as the ceramic source in photopolymer 3D printing. Alumina powder, after being modified with a surface modifier, achieves stable and uniform dispersion in the monomer / crosslinking agent combination. The surface modifier is silane coupling agent KH-570, which chemically bonds the ceramic powder to the final resin network. This significantly improves dispersibility, reduces viscosity, and substantially enhances the mechanical strength of the cured ceramic green body. The volume ratio of surface-modified alumina powder to the monomer / crosslinking agent combination is 1:1. The dispersant is DisperBYK-111, used at 2 wt% of the surface-modified alumina powder. Specifically, the dispersant, through its steric hindrance effect, synergistically works with the surface modifier to prevent the ceramic powder particles from agglomerating due to van der Waals forces, thus ensuring the long-term storage stability of the slurry. The photoinitiator is camphorquinone (CQ) + ethyl p-dimethylaminobenzoate (EDAB), both at 0.05 mol% of the system weight. This photoinitiator combination initiates the free radical polymerization reaction required for printing under illumination. The light absorber is Sudan I, at 0.025 mol% of the system weight. The absorber itself does not participate in the reaction, but it competes with the photoinitiator in the absorption of incident photons from the 3D printer, ensuring that light energy is precisely confined within the thin layer to be cured, thus avoiding over-curing and guaranteeing the Z-axis resolution of the 3D printer. The sintering aid is Y₂O₃ at 0.5 wt%. The core function of the sintering aid, yttrium oxide, is to inhibit abnormal grain growth and promote densification, thereby helping to obtain alumina ceramics with fine grains, high density, and excellent performance. BNNTs have a diameter of 80–100 nm and a length ≥80 μm, and are used at a concentration of 0.1 wt% of the total mass; the morphology of BNNTs is as follows. Figure 1As shown, the enhancing effect of BNNTs is mainly reflected in the following aspects: reducing the friction between ceramic powder particles through the "support-lubrication" effect of the one-dimensional nanostructure; synergistic effect with dispersants to promote the dispersant's effectiveness; BNNTs play a "bridging" or "isolation" role at the ceramic powder interface, thereby further reducing agglomeration; influencing ceramic sintering (promoting grain refinement, increasing density, and promoting phase transformation toughening) and mechanical failure mechanism (high interfacial energy of BNNTs-ceramic interface, crack deflection bridging effect) by introducing BNNTs, and improving the mechanical properties of the finished ceramic through the high strength of BNNTs themselves.

[0020] Figure 6 As shown in Example 2, the ceramic molding method based on reinforced ceramic slurry includes the following steps: (1): Weigh 1.212 g of HDDA, 5.227 g of TMPTA, 0.478 g of DisperBYK-111, 0.019 g of CQ, 0.022 g of EDAB, 0.003 g of Sudan I, 0.156 g of Y2O3, and 0.031 g of BNNTs respectively and place them in a container. Use an eccentric planetary mixer to perform eccentric mixing according to the mixing parameters of 30 s @ 1000 rpm, 30 s @ 1500 rpm, and 30 s @ 2000 rpm to prepare a photosensitive resin premix. (2): Weigh 24.0 g of alumina powder and add it to the photosensitive resin premix in two portions. After each addition, use an eccentric planetary mixer to mix the powder at stirring parameters of 30 s @ 1000 rpm, 30 s @ 1500 rpm, and 60 s @ 2000 rpm to obtain a premixed ceramic slurry. (3): Use a three-roll mill at 50 RPM and 1 μm gap to further grind and disperse the premixed ceramic slurry. Then use a vacuum degassing machine at 20 kPa pressure and 1500 rpm for 180 s to degas the powder and complete the preparation of BNNTs reinforced alumina slurry. (4): Use a photopolymerization 3D printer to print the BNNTs ceramic slurry into a preform. The working wavelength of the photopolymerization 3D printer is 460 nm. (5): After degumming and sintering, the preform is used to obtain the final BNNTs reinforced alumina ceramic product. The degumming and sintering curves are shown in Figure 1. Figure 4 As shown, the equipment used was a box furnace, and the atmosphere used was air. The microstructure of the resulting zirconia ceramic is shown in Figure 5.

[0021] Figure 1 , 2As shown in Figures 3, 4, 5, and 6, through the above technical solutions, the slurry prepared by this invention, under the combined action of relevant materials and processes, is applied in 3D printing equipment. The monomer / crosslinking agent combination effectively offsets the high viscosity caused by TMPTA and ceramic powder. The silane coupling agent KH-570 can connect the ceramic powder to the final resin network through chemical bonds, greatly improving dispersibility, reducing viscosity, and significantly enhancing the mechanical strength of the cured green body. The dispersant, through its physical steric hindrance effect, works synergistically with the surface modifier to prevent the ceramic powder particles from agglomerating due to van der Waals forces, thereby ensuring the long-term storage stability of the slurry. The photoinitiator, when exposed to light from a 3D printer, can initiate the free radical polymerization reaction required for printing. The light absorber itself competitively absorbs incident photons with the photoinitiator in the system, ensuring that the light from the 3D printer is precisely confined within the thin layer to be cured, thus avoiding over-curing and guaranteeing the Z-axis resolution of the 3D printer. BNNTs can reduce the friction between ceramic powder particles, synergistically acting with the dispersant to promote its effectiveness, further reducing agglomeration, promoting grain refinement, increasing density, promoting phase transformation toughening and mechanical failure mechanisms, and improving the mechanical properties of the finished ceramic product through the high strength of BNNTs themselves. In summary, this invention has good application prospects.

[0022] Although the invention has been described with reference to two exemplary embodiments, it should be understood that the terminology used is descriptive and exemplary, and not restrictive. Since the invention can be embodied in many forms without departing from the spirit or essence of the invention, it should be understood that the above embodiments are not limited to any of the foregoing details, but should be interpreted broadly within the spirit and scope defined by the appended claims. Therefore, all variations and modifications falling within the scope of the claims or their equivalents should be covered by the appended claims.

Claims

1. A BNNTs-reinforced ceramic slurry, characterized in that, The product comprises the following components: ceramic powder, monomer / crosslinking agent combination, ceramic powder surface modifier, boron nitride nanotubes, dispersant, sintering aid, photoinitiator, and light absorber; the ceramic powder is alumina with a particle size of D50 of 0.02–1 μm; the boron nitride nanotubes have a diameter range of 10–100 nm, a length range of 1–100 μm, and an addition amount of 0.1–1 wt%; the monomer / crosslinking agent is acrylic acid, the ceramic powder surface modifier is a KH series, and the dispersant is a DisperBYK series; the sintering aid is Y₂O₃, the photoinitiator is Irgacure 819, and the light absorber is Tinuvin 171.

2. The BNNTs-reinforced ceramic slurry according to claim 1, characterized in that, The ceramic powder can also be one or a combination of 3 mol% yttrium oxide-stabilized zirconium oxide, zirconium oxide-toughened alumina, silicon dioxide, silicon nitride, aluminum nitride, silicon carbide, and hydroxyapatite.

3. The BNNTs-reinforced ceramic slurry according to claim 1, characterized in that, The monomer / crosslinking agent may also be one or a combination of 1,6-hexanediol diacrylate, 4-hydroxybutyl acrylate, hydroxyethyl methacrylate, trimethylolpropane triacrylate, pentaerythritol tetraacrylate, polyethylene glycol diacrylate, diethylene glycol dimethacrylate, 2-ethylhexyl acrylate, isobornyl acrylate, 2-hydroxyethyl acrylate, pentaerythritol triacrylate, pentaerythritol tris(3-mercaptopropionic acid), pentaerythritol tetra(3-mercaptopropionic acid), acrylamide, and N,N'-methyleneacrylamide.

4. The BNNTs-reinforced ceramic slurry according to claim 1, characterized in that, The surface modifier for ceramic powder can also be one of KOS110, Solsperse41000, Triton X-100, oleic acid, sebacic acid, and sintering aid can also be one or a combination of MgO, Cu2O, SiO2, CaO, CeO2, TiO2, and Al2O3.

5. The BNNTs-reinforced ceramic slurry according to claim 1, characterized in that, The photoinitiator can also be one of TPO, Irgacure2100, Irgacure1173, Irgacure2959 or a combination of camphorquinone and ethyl p-dimethylaminobenzoate, and the light absorber can also be SudanI.

6. The ceramic forming method based on reinforced ceramic slurry according to any one of claims 1 to 5, characterized in that, The process includes the following steps: S1: Weigh the monomer / crosslinking agent, dispersant, photoinitiator, light absorber, sintering aid, and boron nitride nanotubes respectively and place them in a container. Mix them using an eccentric planetary mixer to prepare a photosensitive resin premix. S2: Weigh the ceramic powder modified with the surface modifier, add it to the photosensitive resin premix in two batches, and stir and mix it with an eccentric planetary mixer after each addition to obtain a premixed ceramic slurry; S3: Use a three-roll mill to further grind and disperse the premixed ceramic slurry, and then use a vacuum degassing machine to degas it to complete the preparation of the BNNTs reinforced ceramic slurry; S4: Use a photopolymerization 3D printer corresponding to the working wavelength of the photoinitiator to print the BNNTs ceramic slurry into a preform; S5: After degumming and sintering, the preform is used to obtain the final BNNTs reinforced ceramic product.

7. The ceramic forming method based on reinforced ceramic slurry according to claim 6, characterized in that, In steps S1 and S2, the eccentric planetary mixer performs eccentric mixing according to mixing parameters of 30s@1000rpm, 30s@1500rpm, and 30s@2000rpm.

8. The ceramic forming method based on reinforced ceramic slurry according to claim 6, characterized in that, In step S3, the premixed ceramic slurry is ground and dispersed using a three-roll mill at 50 RPM and 1 μm gap, and degassed for 180 s using a vacuum degassing machine at 20 kPa pressure and 1500 rpm speed.

9. The ceramic forming method based on reinforced ceramic slurry according to claim 6, characterized in that, In step S5, the equipment used is a box furnace, and the atmosphere used is air.

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