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Ceramic capable of resisting high temperature and preparation method of ceramic

A technology of high temperature resistance and ceramics, applied in the field of ceramics, can solve the problems of high temperature resistance that cannot meet the requirements of consumers, poor thermal shock resistance, and high thermal expansion coefficient, and can improve water resistance and strength, specific heat resistance to mechanical vibration, The effect of high thermal conductivity

Pending Publication Date: 2019-02-15
FOSHAN UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Research on high heat-resistant ceramics has always been a difficult problem in the field of daily-use ceramics. The existing heat-resistant ceramic products have the following disadvantages: First, the heat-resistant temperature can only reach 400-500°C, and the high-temperature resistance performance cannot meet the expectations of consumers. Requirements, it is easy to crack at higher temperatures, and there is a great potential safety hazard; second, the existing heat-resistant ceramic products have a high thermal expansion coefficient, poor thermal shock resistance, and easy to break in heat exchange, so they cannot be used in harsh environments. use

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A high-temperature-resistant ceramic, comprising the following raw material components in parts by weight: 40 parts of kaolin, 5 parts of titanium diboride, 8 parts of carbon-free silicon whiskers, 3 parts of zirconia, 15 parts of ceramic fiber, and 10 parts of spodumene 6 parts, 6 parts of bauxite.

[0023] The preparation method of the high temperature resistant ceramics comprises the following steps:

[0024] S1. Take each raw material component according to the above parts by weight, mix and pulverize, pass through a 200-mesh sieve, remove impurities, and obtain a powder;

[0025] S2. Add distilled water with 3 times the total weight of the ingredients to the powder, ultrasonically disperse it at normal temperature, then pour it into a ball mill for ball milling, the ball milling speed is 150r / min, and the ball milling time is 7h; then pass through a 400 mesh sieve to obtain slurry;

[0026] S3, press-filter the slurry until the moisture content of the filter cake...

Embodiment 2

[0031] A high-temperature-resistant ceramic, comprising the following raw material components in parts by weight: 45 parts of kaolin, 9 parts of titanium diboride, 10 parts of carbon-free silicon whiskers, 5 parts of zirconia, 18 parts of ceramic fiber, and 12 parts of spodumene 8 parts, 8 parts of bauxite.

[0032] The preparation method of the high temperature resistant ceramics comprises the following steps:

[0033] S1. Take each raw material component according to the above parts by weight, mix and pulverize, pass through a 230-mesh sieve, remove impurities, and obtain a powder;

[0034] S2, add distilled water to 5 times the total weight of the ingredients in the powder, ultrasonically disperse at normal temperature, then pour it into a ball mill for ball milling, the ball milling speed is 150r / min, and the ball milling time is 7h; then pass through a 500 mesh sieve to obtain slurry;

[0035] S3, press-filter the slurry until the moisture content of the filter cake is ...

Embodiment 3

[0040] A high-temperature-resistant ceramic, comprising the following raw material components in parts by weight: 50 parts of kaolin, 8 parts of titanium diboride, 12 parts of carbon-free silicon whiskers, 6 parts of zirconia, 17 parts of ceramic fiber, and 12 parts of spodumene parts, 9 parts of bauxite.

[0041] The preparation method of the high temperature resistant ceramics comprises the following steps:

[0042] S1. Take each raw material component according to the above parts by weight, mix and pulverize, pass through a 250-mesh sieve, remove impurities, and obtain a powder;

[0043] S2, add distilled water to 4 times the total weight of the ingredients in the powder, ultrasonically disperse at normal temperature, then pour it into a ball mill for ball milling, the ball milling speed is 160r / min, and the ball milling time is 6h; then pass through a 400 mesh sieve to obtain slurry;

[0044] S3, press-filter the slurry until the water content of the filter cake is 20%; ...

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PUM

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Abstract

The invention discloses a ceramic capable of resisting high temperature and a preparation method of the ceramic. The ceramic capable of resisting high temperature comprises raw material components inparts by weight as follows: 40-60 parts of kaolin, 5-10 parts of titanium diboride, 8-16 parts of carbon-free silicon crystal whiskers, 3-10 parts of zirconia, 15-20 parts of ceramic fibers, 10-15 parts of spodumene and 6-12 parts of alumina. According to the scheme, the ceramic is resistant to high temperature and has low thermal expansion coefficient, excellent thermal shock resistance and goodheat stability.

Description

technical field [0001] The invention relates to the technical field of ceramics, in particular to a high-temperature-resistant ceramic and a preparation method thereof. Background technique [0002] Research on high heat-resistant ceramics has always been a difficult problem in the field of daily-use ceramics. The existing heat-resistant ceramic products have the following disadvantages: First, the heat-resistant temperature can only reach 400-500°C, and the high-temperature resistance performance cannot meet the expectations of consumers. Requirements, it is easy to crack at higher temperatures, and there is a great potential safety hazard; second, the existing heat-resistant ceramic products have a high thermal expansion coefficient, poor thermal shock resistance, and easy to break in heat exchange, so they cannot be used in harsh environments. use. Contents of the invention [0003] In order to solve the above technical problems, the present invention provides a high t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B33/36C04B33/13C04B33/04
CPCC04B33/04C04B33/13C04B33/36C04B2235/3217C04B2235/3244C04B2235/3472C04B2235/3813C04B2235/5216C04B2235/524C04B2235/6562C04B2235/6567C04B2235/9607
Inventor 李玲玲吴斌
Owner FOSHAN UNIVERSITY
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