Sub-nanometer spherical silicone micro powder-containing high-tenacity composite ceramic

A technology of spherical silicon micropowder and composite ceramics, which is applied in the field of nanomaterials, can solve the problems of unsatisfactory bending resistance and elastic strength, and achieve the effect of enhancing the mechanical properties of the overall structure, high toughness, and facilitating the process

Inactive Publication Date: 2017-09-22
苏州吉云新材料技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to its own brittleness, the bending resistance and elastic strength of ceramics are not satisfactory, so it needs to be toughened to obtain a good comprehensive effect.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] A high-toughness composite ceramic containing subnano spherical silica powder, comprising matrix raw materials and additives, the matrix raw materials comprising the following components by weight:

[0031] Zirconia 69 parts

[0032] Aluminum oxide 7 parts

[0033] Kaolin 6 parts

[0034] Lithium feldspar 4.5 parts

[0035] Alkaline earth metal carbonate 6 parts

[0036] Rare earth metal oxide 0.05 parts

[0037] Basalt fiber 5 parts

[0038] 3.5 parts of sub-nanometer spherical silica powder;

[0039] The auxiliary agent comprises the following components by weight:

[0040] Sodium silicate 5 parts

[0041] Ethylene glycol monobutyl ether 0.5 part

[0042] 2 parts barium hydroxide

[0043] 1 part carboxymethyl cellulose

[0044] 1 part polyethylene fiber

[0045] Potassium sulfate 1.2 parts

[0046] Sodium Lauryl Sulfate 2 parts;

[0047] The particle size and distribution of the sub-nanometer spherical silica powder are as follows: the proportion of the p...

Embodiment 2

[0050] A high-toughness composite ceramic containing subnano spherical silica powder, comprising matrix raw materials and additives, the matrix raw materials comprising the following components by weight:

[0051] Zirconia 80 parts

[0052] Aluminum oxide 10 parts

[0053] Kaolin 5 parts

[0054] Lithium feldspar 3 parts

[0055] Alkaline earth metal carbonate 3 parts

[0056] Rare earth metal oxide 0.2 parts

[0057] Basalt fiber 4 parts

[0058] 7.5 parts of sub-nanometer spherical silica powder;

[0059] The auxiliary agent comprises the following components by weight:

[0060] Sodium silicate 3 parts

[0061] Ethylene glycol monobutyl ether 1.2 parts

[0062] Barium hydroxide 1.5 parts

[0063] Carboxymethyl cellulose 2 parts

[0064] Polyethylene fiber 1.5 parts

[0065] Potassium sulfate 1.5 parts

[0066] 1.5 parts of sodium lauryl sulfate;

[0067] The particle size and distribution of the sub-nanometer spherical silica powder are as follows: the proportio...

Embodiment 3

[0070] A high-toughness composite ceramic containing subnano spherical silica powder, comprising matrix raw materials and additives, the matrix raw materials comprising the following components by weight:

[0071] Zirconia 65 parts

[0072] Aluminum oxide 5 parts

[0073] Kaolin 7 parts

[0074] Lithium feldspar 6 parts

[0075] Alkaline earth metal carbonate 8 parts

[0076] Rare earth metal oxide 0.5 parts

[0077] Basalt fiber 8 parts

[0078] 5 parts of sub-nanometer spherical silica powder;

[0079] The auxiliary agent comprises the following components by weight:

[0080] 4 parts sodium silicate

[0081] Ethylene glycol monobutyl ether 2 parts

[0082] 1 part barium hydroxide

[0083] 3 parts carboxymethyl cellulose

[0084] Polyethylene fiber 0.5 parts

[0085] Potassium sulfate 2 parts

[0086] 3 parts sodium lauryl sulfate;

[0087]The particle size and distribution of the sub-nanometer spherical silicon micropowder are as follows: the proportion of the p...

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Abstract

The invention discloses a sub-nanometer spherical silicone micro powder-containing high-tenacity composite ceramic. The sub-nanometer spherical silicone micro powder-containing high-tenacity composite ceramic is prepared from matrix raw materials and auxiliary agents, wherein the matrix raw materials is prepared from the following components in parts by weight: 65 to 80 parts of zirconium oxide, 5 to 10 parts of aluminum oxide, 5 to 7 parts of kaoline, 3 to 6 parts of lithium feldspar, 3 to 8 parts of alkali-earth metal carbonate, 0 to 0.5 part of rare-earth metal oxide, 4 to 8 parts of basalt fiber and 3.5 to 7.5 parts of sub-nanometer spherical silicone micro powder; and the auxiliary agents comprise the following components in parts by weight: 3 to 5 parts of sodium silicate, 0.5 to 2 parts of ethylene glycol monobutyl ether, 1 to 2 parts of barium hydroxide, 1 to 3 parts of carboxymethyl cellulose, 0.5 to 1.5 parts of polyethylene fiber, 1.2 to 2 parts of potassium sulphate and 1.5 to 3 parts of lauryl sodium sulfate. A plurality of tenacity reinforcing measures are taken to improve elasticity and structural mechanical property of the ceramic, particularly, the compactness of a ceramic matrix is improved by the sub-nanometer spherical silicone micro powder, and the ceramic matrix has enough tenacity, strength, hardness and abrasion resistance.

Description

technical field [0001] The invention relates to the technical field of nanometer materials, in particular to a high-toughness composite ceramic containing subnanometer spherical silicon micropowder. Background technique [0002] Ceramic materials are widely used, and composite ceramics are currently being vigorously developed in China. Adjustment to the intended use in each case can be achieved by the targeted addition of certain elements and / or their compounds. For example, aluminum oxide and zirconium oxide are ceramic materials which are processed in particular individually or in combination with each other to form cutting tools, catalyst supports or prostheses. However, due to its own brittleness, the bending resistance and elastic strength of ceramics are not satisfactory, so it needs to be toughened to obtain a good comprehensive effect. [0003] It is made into silicon micropowder after mechanical crushing with quartz ore. It is divided into: fused silica powder an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/48C04B35/63
CPCC04B35/481C04B35/6303C04B2235/3205C04B2235/3208C04B2235/3217C04B2235/3224C04B2235/3418C04B2235/3472C04B2235/5216C04B2235/526C04B2235/5264C04B2235/5445
Inventor 唐健江
Owner 苏州吉云新材料技术有限公司
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