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Cerium-oxide-containing high-temperature-resistant special ceramic and preparation method thereof

A special ceramic, cerium oxide-containing technology, used in clay products, other household appliances, household appliances, etc., can solve the problems of high cost, low heat resistance temperature, complex sintering process, etc., and achieves an increase in heat resistance temperature and a reduction in sintering temperature. and sintering time, the effect of reducing production cost

Active Publication Date: 2015-02-25
铜陵市华冉科技服务有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Traditional heat-resistant ceramics generally have low heat-resistant temperature, and the sintering process is complicated and costly

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] A high-temperature-resistant special ceramic containing cerium oxide, which is composed of the following raw materials in weight (kg): 16 burnt gems, 20 forsterite, 10 purple clay, 26 silicon carbide, 3 zirconium phosphate, 2.5 boron nitride, Manganese dioxide 1, cerium oxide 2, triethanolamine 4, sodium sulfate 2, molasses 3, calcium formate 1.5, polyvinyl alcohol 2, hydroxymethyl cellulose 1, sodium lignosulfonate 1, paraffin 3, deionized Appropriate amount of water.

[0018] A method for preparing high-temperature-resistant special ceramics containing cerium oxide, comprising the following steps

[0019] (1) Put coke gemstone, forsterite, silicon carbide, and boron nitride into the calciner, ablate for 2 hours, and ablate at a temperature of 400°C;

[0020] (2) Put the product obtained in step (1) into a pulverizer for pulverization, pass through an 80-mesh sieve, put it into a ball mill, add triethanolamine and sodium bicarbonate, and ball mill at a high speed of 2...

Embodiment 2

[0028] A high-temperature-resistant special ceramic containing cerium oxide, which is composed of the following raw materials in weight (kg): coke 18, forsterite 22, purple clay 14, silicon carbide 28, zirconium phosphate 4, boron nitride 3.5, Manganese dioxide 2, cerium oxide 3, triethanolamine 5, sodium sulfate 3, molasses 4, calcium formate 2, polyvinyl alcohol 2.5, hydroxymethyl cellulose 1.5, sodium lignosulfonate 1.5, paraffin 4, deionized Appropriate amount of water.

[0029] A method for preparing high-temperature-resistant special ceramics containing cerium oxide, comprising the following steps

[0030] (1) Put coke gemstones, forsterite, silicon carbide, and boron nitride into the calciner, ablate for 1.5h, and ablate at a temperature of 450°C;

[0031] (2) Put the product obtained in step (1) into a pulverizer for pulverization, pass through a 100-mesh sieve, put it into a ball mill, add triethanolamine and sodium bicarbonate, mill at a high speed of 2500rpm for 1....

Embodiment 3

[0039] A high-temperature-resistant special ceramic containing cerium oxide, which is composed of the following raw materials in weight (kg): coke gem 20, forsterite 24, purple clay 16, silicon carbide 30, zirconium phosphate 5, boron nitride 4.5, Manganese dioxide 3, cerium oxide 4, triethanolamine 6, sodium sulfate 4, waste molasses 5, calcium formate 2.5, polyvinyl alcohol 3, hydroxymethyl cellulose 2, sodium lignosulfonate 2, paraffin 5, deionization Appropriate amount of water.

[0040] A method for preparing high-temperature-resistant special ceramics containing cerium oxide, comprising the following steps

[0041] (1) Put burnt gemstone, forsterite, silicon carbide, and boron nitride into the calciner, ablate for 1 hour, and ablate at a temperature of 500°C;

[0042] (2) Put the product obtained in step (1) into a pulverizer for pulverization, pass it through a 120-mesh sieve, put it into a ball mill, add triethanolamine and sodium bicarbonate, ball mill it at 3000 rpm...

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Abstract

The invention discloses a cerium-oxide-containing high-temperature-resistant special ceramic and a preparation method thereof. The special ceramic is prepared from the following raw materials in parts by weight: 16-20 parts of flint clay, 20-24 parts of forsterite, 10-16 parts of red porcelain clay, 26-30 parts of silicon carbide, 3-5 parts of zirconium phosphate, 2.5-4.5 parts of boron nitride, 1-3 parts of manganese peroxide, 2-4 parts of cerium oxide, 4-6 parts of triethanolamine, 2-4 parts of glauber salt, 3-5 parts of blackstrap molasses, 1.5-2.5 parts of calcium formate, 2-3 parts of polyvinyl alcohol, 1-2 parts of hydroxymethyl cellulose, 1-2 parts of sodium lignosulfonate, 3-5 parts of paraffin and a right amount of deionized water. The technique of preparing micropowder by firstly pulverizing the raw materials and then performing ball milling is adopted to ensure the size of the powder; by adding proper amounts of red porcelain clay, silicon carbide, boron nitride, zirconium phosphate and cerium oxide, the resistance to temperature is greatly enhanced to more than 3500 DEG C; and the manganese peroxide is added to reduce the sintering temperature and sintering time, thereby implementing sintering of the high-temperature-resistant ceramic under hot pressing and lowering the production cost.

Description

technical field [0001] The invention relates to special ceramic products, in particular to a high-temperature-resistant special ceramic containing cerium oxide and a preparation method thereof. Background technique [0002] New technology fields such as aerospace, nuclear industry, new energy, national defense and military industry are in urgent need of a large number of new materials. Special ceramics have excellent heat resistance, dielectric properties, wear resistance, heat insulation properties, piezoelectric properties, The light transmission performance has been widely valued by various countries. Heat-resistant ceramics are one of the important branches. Traditional heat-resistant ceramics generally have a low heat-resistant temperature, and the sintering process is complicated and costly. Therefore there is an urgent need to improve it, reduce costs, allow it to be used in a wider range, and have stronger practicability. Contents of the invention [0003] The o...

Claims

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Application Information

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IPC IPC(8): C04B33/13
Inventor 倪娟形
Owner 铜陵市华冉科技服务有限公司
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