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High-temperature-resistant ceramic for hot air spraying and preparation method of high-temperature-resistant ceramic
The invention relates to high-temperature-resistant ceramic for hot air spraying. The high-temperature-resistant ceramic comprises the following raw materials in parts by weight: 16-20 parts of aluminum oxide, 20-24 parts of titanium carbide, 10-16 parts of purple grit mud, 26-30 parts of zirconium oxide, 3-5 parts of zirconium phosphate, 2.5-4.5 parts of boron nitride, 1-3 parts of manganese dioxide, 2-4 parts of carbon fiber, 4-6 parts of triethanolamine, 2-4 parts of anhydrous sodium sulphate, 3-5 parts of silica sol, 1.5-2.5 parts of calcium formate, 1-2 parts of hydroxymethyl cellulose, 1-2 parts of sodium lignin sulfonate, 3-5 parts of paraffin, 1-3 parts of composite rare earth power and an appropriate amount of deionized water; the composite rare earth power comprises the following components in percentage by weight: 31-33% of La, 24-39% of Eu, 20-26% of Sc, 9-11% of Gd, and 9-12% of Sm, and the sum of the weight percentages of the components is 100%. The high-temperature-resistant ceramic provided by the invention is fine, smooth and hard in texture, has ultrahigh hardness and wear resistance; by adding carbon fiber, the toughness and the wear resistance are improved, and by adding zirconium oxide, the heat resistance and the wear resistance of the ceramic are improved; a coating made by using the ceramic is good in crack resistance and long in service life.
High-temperature-resistant ceramic for hot air spraying and preparation method of high-temperature-resistant ceramic
The invention relates to high-temperature-resistant ceramic for hot air spraying. The high-temperature-resistant ceramic comprises the following raw materials in parts by weight: 16-20 parts of aluminum oxide, 20-24 parts of titanium carbide, 10-16 parts of purple grit mud, 26-30 parts of zirconium oxide, 3-5 parts of zirconium phosphate, 2.5-4.5 parts of boron nitride, 1-3 parts of manganese dioxide, 2-4 parts of carbon fiber, 4-6 parts of triethanolamine, 2-4 parts of anhydrous sodium sulphate, 3-5 parts of silica sol, 1.5-2.5 parts of calcium formate, 1-2 parts of hydroxymethyl cellulose, 1-2 parts of sodium lignin sulfonate, 3-5 parts of paraffin, 1-3 parts of composite rare earth power and an appropriate amount of deionized water; the composite rare earth power comprises the following components in percentage by weight: 31-33% of La, 24-39% of Eu, 20-26% of Sc, 9-11% of Gd, and 9-12% of Sm, and the sum of the weight percentages of the components is 100%. The high-temperature-resistant ceramic provided by the invention is fine, smooth and hard in texture, has ultrahigh hardness and wear resistance; by adding carbon fiber, the toughness and the wear resistance are improved, and by adding zirconium oxide, the heat resistance and the wear resistance of the ceramic are improved; a coating made by using the ceramic is good in crack resistance and long in service life.
High-temperature-resistant ceramic for hot air spraying and preparation method of high-temperature-resistant ceramic
WU MING (author) / HUANG LI (author) / HUANG SHIYU (author) / LIU FANG (author)
2015-07-29
Patent
Electronic Resource
English
IPC:
C04B
Kalk
,
LIME
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