Preparation method of ceramic material

A technology of ceramic materials and alumina ceramics, applied in the field of ceramics, can solve the problems of low hardness of ceramic materials, and achieve the effects of improving density, increasing hardness and overcoming low hardness

Active Publication Date: 2022-04-22
重庆恩辰新材料科技有限责任公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] Therefore, the technical problem to be solved by the present invention is to overcome the defects of low hardness of ceramic materials prepared by existing 3D printing technology, thereby providing a method for preparing ceramic materials

Method used

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  • Preparation method of ceramic material
  • Preparation method of ceramic material
  • Preparation method of ceramic material

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Embodiment 1

[0070] This embodiment provides a preparation method of a ceramic material, comprising the following steps:

[0071] (1) Preparation of ceramic green body slurry:

[0072] Step S1: Mix 1 μm, 0.5 μm and 0.2 μm ZTA (the mass ratio of zirconia and alumina in ZTA is 1:8) and mix with auxiliary ceramic powder (chromium oxide, cerium oxide, calcium oxide), add surface active Agent (oleic acid) and 50g dehydrated ethanol, after 500r / min ball milling 6h, dry to constant weight, grind, cross 200 mesh sieves, obtain the ceramic powder body of surfactant modification;

[0073] S2 step: UV photocurable oligomer (polyurethane acrylate), reaction diluent (polyethylene glycol diacrylate, N-vinylpyrrolidone, acrylate-2-(2-ethoxyethoxy) ethyl ester ), photoinitiator ((2,4,6-trimethylbenzoyl) diphenylphosphine oxide), polymerization inhibitor (hydroquinone), light absorber (2-(2'-hydroxyl-3 ', 5'-di-tert-phenyl)-5-chlorinated benzotriazole), stirred evenly at 60°C on a heating platform covere...

Embodiment 2

[0087] This embodiment provides a preparation method of a ceramic material, comprising the following steps:

[0088] (1) Ceramic body slurry preparation:

[0089] S1 step: mix 0.8 μm and 0.2 μm ZTA (mass ratio of zirconia and alumina in ZTA is 1:9) and mix with auxiliary ceramic powder (chromium oxide, zinc oxide), add surfactant (triton X-100) and 55g of absolute ethanol, dried to constant weight after ball milling at 500r / min for 6h, ground, and crossed a 200-mesh sieve to obtain a surfactant-modified ceramic powder;

[0090] Step S2: UV photocurable oligomer (bisphenol A type epoxy acrylate), reaction diluent (polyethylene glycol diacrylate, trimethylolpropane triacrylate, isobornyl acrylate), photoinitiated Agent (phenylbis(2,4,6-trimethylbenzoyl)phosphine oxide), polymerization inhibitor (2,6-di-tert-butyl-4-methylphenol), light absorber (2-( 2H-benzotriazol-2-yl)-4,6-bis(1-methyl-1-phenylethyl)phenol), stirred evenly at 80°C on a heating platform covered with a black l...

Embodiment 3

[0103] This embodiment provides a preparation method of a ceramic material, comprising the following steps:

[0104] (1) Preparation of ceramic green body slurry:

[0105] Step S1: Mix 1 μm, 0.5 μm and 0.2 μm ZTA (the mass ratio of zirconia and alumina in ZTA is 1:10) and mix it with auxiliary ceramic powder (chromium oxide, zinc oxide), add surfactant (oil acid) and 50g of absolute ethanol, dried to constant weight after ball milling at 500r / min for 6h, ground, and passed through a 200-mesh sieve to obtain a surfactant-modified ceramic powder;

[0106] S2 step: UV photocurable oligomer (bisphenol A type epoxy acrylate), reaction diluent (tripropylene glycol diacrylate, 1,6-hexanediol diacrylate, ditrimethylol propane tetraacrylic acid ester), photoinitiator ((2,4,6-trimethylbenzoyl) diphenylphosphine oxide), polymerization inhibitor (hydroquinone), light absorber (2-(2H-benzotri Azol-2-yl)-4,6-di-tert-amylphenol), stirred evenly at 55°C on a heating platform covered with a ...

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Abstract

The invention belongs to the technical field of ceramics, and provides a preparation method of a ceramic material, which comprises the following steps: degumming a zirconium oxide toughened aluminum oxide ceramic blank, pre-sintering, soaking in steeping liquor and sintering, wherein the impregnation liquid comprises a zirconium ion salt solution, an aluminum ion salt solution and urea. According to the preparation method of the ceramic material, the mixed solution of the zirconium ion salt solution, the aluminum ion salt solution and the urea is adopted as the steeping liquor to carry out post-treatment on the zirconium oxide toughened aluminum oxide ceramic green body, the compactness of the ceramic material is improved, and the defect that a ceramic product prepared through a traditional 3D printing technology is low in hardness is overcome.

Description

technical field [0001] The invention relates to the technical field of ceramics, in particular to a method for preparing ceramic materials. Background technique [0002] Ceramic rivet is the most important consumable in the semiconductor packaging and testing process. It belongs to precision microstructure ceramic components and plays an irreplaceable role in the field of semiconductor wire bonding and welding. Because ceramic riving knives are often used in harsh environments such as high temperature, low temperature, high humidity, and strong impact, it is forced to have the characteristics of high hardness, high strength, high wear resistance, and chemical corrosion resistance. [0003] At present, the preparation methods of ceramic rivets include mechanical cutting, chemical etching, injection molding, gel injection molding, laser bombardment, and high-temperature microwave treatment. The surface roughness of the prepared ceramic riving knife is not suitable, there are ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/119C04B35/622C04B35/638C04B35/634B28B1/00B33Y70/10B33Y10/00
CPCC04B35/119C04B35/622C04B35/638C04B35/63452C04B35/63456C04B35/6346B28B1/001B33Y70/10B33Y10/00C04B2235/6562C04B2235/6567C04B2235/616C04B2235/5436C04B2235/5445C04B2235/3241C04B2235/3229C04B2235/3208C04B2235/3284C04B2235/96Y02P10/25
Inventor 杨治华张砚召周国相
Owner 重庆恩辰新材料科技有限责任公司
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