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Titanium carbide-silicon carbide-titanium silicide composite ceramic material and preparation method thereof

A technology of composite ceramics and titanium silicide, applied in the field of ceramic composite materials, can solve the problems of insufficient toughness, poor thermal shock resistance, high brittleness of titanium carbide ceramics, etc., and achieve good bending strength and fracture toughness, and excellent thermal shock resistance. , the effect of enhancing mechanical properties

Active Publication Date: 2016-08-03
株洲华驰新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the high brittleness, insufficient toughness and poor thermal shock resistance of titanium carbide ceramics limit its application to a certain extent.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] A titanium carbide-silicon carbide-titanium silicide composite ceramic material is composed of the following raw materials in parts by weight: 65 parts of titanium carbide powder, 32 parts of silicon carbide powder, 26 parts of titanium silicide powder, 3 parts of aluminum oxide powder, and nanometer indium oxide 5 parts of powder, 2 parts of molybdenum powder.

[0021] The preparation method of titanium carbide-silicon carbide-titanium silicide composite ceramic material described in this embodiment, the steps are as follows:

[0022] 1) Weigh titanium carbide powder, silicon carbide powder and titanium silicide powder, put them into a ball mill jar, use absolute ethanol as a dispersion medium, and ball mill for 8 hours to obtain the first dispersion;

[0023] 2) Place the first dispersion in a vacuum drying oven and dry at 140°C for 2 hours to remove absolute ethanol and obtain the first mixed powder;

[0024] 3) Put the first mixed powder into a vacuum sintering fur...

Embodiment 2

[0030] A titanium carbide-silicon carbide-titanium silicide composite ceramic material is composed of the following raw materials in parts by weight: 68 parts of titanium carbide powder, 40 parts of silicon carbide powder, 29 parts of titanium silicide powder, 6 parts of aluminum oxide powder, and nanometer indium oxide 8 parts of powder, 4 parts of molybdenum powder.

[0031] The preparation method of titanium carbide-silicon carbide-titanium silicide composite ceramic material described in this embodiment, the steps are as follows:

[0032] 1) Weigh titanium carbide powder, silicon carbide powder and titanium silicide powder, put them into a ball mill jar, use absolute ethanol as a dispersion medium, and ball mill for 12 hours to obtain the first dispersion;

[0033] 2) Place the first dispersion in a vacuum drying oven and dry at 150°C for 3 hours to remove absolute ethanol and obtain the first mixed powder;

[0034] 3) Put the first mixed powder into a vacuum sintering fu...

Embodiment 3

[0040] A titanium carbide-silicon carbide-titanium silicide composite ceramic material is composed of the following raw materials in parts by weight: 67 parts of titanium carbide powder, 36 parts of silicon carbide powder, 28 parts of titanium silicide powder, 5 parts of aluminum oxide powder, and nanometer indium oxide 6 parts of powder, 3 parts of molybdenum powder.

[0041] The preparation method of titanium carbide-silicon carbide-titanium silicide composite ceramic material described in this embodiment, the steps are as follows:

[0042] 1) Weigh titanium carbide powder, silicon carbide powder and titanium silicide powder, put them into a ball mill jar, use absolute ethanol as the dispersion medium, and ball mill for 10 hours to obtain the first dispersion;

[0043] 2) Place the first dispersion in a vacuum drying oven and dry at 145°C for 2.5 hours to remove absolute ethanol and obtain the first mixed powder;

[0044] 3) Put the first mixed powder into a vacuum sinterin...

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Abstract

The invention discloses a titanium carbide-silicon carbide-titanium silicide composite ceramic material. The composite ceramic material comprises, by weight, 65-68 parts of titanium carbide powder, 32-40 parts of silicon carbide powder, 26-29 parts of titanium silicide powder, 3-6 parts of alumina powder, 5-8 parts of indium oxide nanopowder and 2-4 parts of molybdenum powder. The invention also provides a preparation method of the titanium carbide-silicon carbide-titanium silicide composite ceramic material. The titanium carbide-silicon carbide-titanium silicide composite ceramic material prepared in the invention has the advantages of good bending strength, good fracture toughness, and excellent thermal shock resistance, so development of the application range of silicon carbide ceramic is facilitated.

Description

technical field [0001] The invention relates to the technical field of ceramic composite materials, in particular to a titanium carbide-silicon carbide-titanium silicide composite ceramic material and a preparation method thereof. Background technique [0002] The development history of ceramics is an important part of the history of Chinese civilization. As one of the four ancient civilizations, China has made outstanding contributions to the progress and development of human society. Among them, the invention and development of ceramics has unique significance. Different dynasties and dynasties in Chinese history have different artistic styles and different technical characteristics. With the development of modern science and technology, many new ceramic varieties have emerged in the past century. They no longer use or rarely use traditional ceramic raw materials such as clay, feldspar, and quartz, but use other special raw materials, and even expand to the scope of non-s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/56
CPCC04B35/5611C04B2235/3217C04B2235/3286C04B2235/3826C04B2235/3891C04B2235/404
Inventor 刘佩佩
Owner 株洲华驰新材料有限公司
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