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Carbon fiber-reinforced Ti3SiC2 composite material and preparation method thereof

A composite material and carbon fiber technology, applied in the field of composite materials, can solve the problems of high cost, limitation, high cost application and promotion of materials, and achieve the effect of high cost performance and self-lubricating performance

Inactive Publication Date: 2020-07-28
YANSHAN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, there are also complex methods for preparing composite materials, and the high cost limits the application and promotion of this material [Li Pengtao. A Ti-containing 3 SiC 2 Phase-based carbon fiber reinforced ceramic matrix friction material and its preparation method. CN 107010985A. Hunan Kaibo New Material Technology Co., Ltd., published on January 4, 2017]
[0004] In summary, the current research on carbon fiber reinforced Ti 3 SiC 2 In the study of composite materials, although some carbon fiber reinforced Ti 3 SiC 2 Composite materials can enhance the friction performance of composite materials, but the cost of preparation materials is generally high, which greatly limits the Ti 3 SiC 2 Promotion and Application of Composite Materials

Method used

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  • Carbon fiber-reinforced Ti3SiC2 composite material and preparation method thereof
  • Carbon fiber-reinforced Ti3SiC2 composite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] First, the 325 mesh Ti 3 SiC 2 The powder is put into a ball mill jar; then, carbon fiber is added in an amount of 20wt.%. Put grinding balls into the ball mill jar, wherein, the diameter of the large ball is 8 mm, and the diameter of the small ball is 5 mm; the mass ratio of the large and small balls is 7:3. The mass ratio of grinding ball and powder is 8:1. The speed of the ball mill is 300r / min; the ball milling time is 4h; every 30min stop for 1min; 3 SiC 2 Mix raw powder.

[0029] Secondly, the carbon fiber and Ti 3 SiC 2 Pre-compression molding of mixed raw material powder. The pressure is 300MPa, and the holding time is 30s; then, the pre-pressed block is dried at 50° C. for 2 hours; finally, the pre-pressed block is sintered in a vacuum-protected atmosphere by hot pressing.

[0030] Finally, the carbon fiber reinforced Ti 3 SiC 2 composite material. The sintering temperature is 1200°C; the heating rate is 30°C / min; the sintering pressure is 30MPa; the...

Embodiment 2

[0032] First, the 325 mesh Ti 3 SiC 2The powder is put into a ball mill jar; then, carbon fiber is added in an amount of 20wt.%. Put grinding balls into the ball mill jar, wherein, the diameter of the large ball is 8 mm, and the diameter of the small ball is 5 mm; the mass ratio of the large and small balls is 7:3. The mass ratio of grinding ball and powder is 8:1. The speed of the ball mill is 300r / min; the ball milling time is 4h; every 30min stop for 1min; 3 SiC 2 Mix raw powder.

[0033] Secondly, the carbon fiber and Ti 3 SiC 2 Pre-compression molding of mixed raw material powder. The pressure is 300MPa, and the holding time is 30s; then, the pre-pressed block is dried at 50° C. for 2 hours; finally, the pre-pressed block is sintered in a vacuum-protected atmosphere by hot pressing.

[0034] Finally, the carbon fiber reinforced Ti 3 SiC 2 composite material. The sintering temperature is 1500°C; the heating rate is 30°C / min; the sintering pressure is 30MPa; the ...

Embodiment 3

[0036] First, the 325 mesh Ti 3 SiC 2 The powder is put into a ball mill jar; then, carbon fiber is added in an amount of 20wt.%. Put grinding balls into the ball mill jar, wherein, the diameter of the large ball is 8 mm, and the diameter of the small ball is 5 mm; the mass ratio of the large and small balls is 7:3. The mass ratio of grinding ball and powder is 8:1. The speed of the ball mill is 300r / min; the ball milling time is 4h; every 30min stop for 1min; 3 SiC 2 Mix raw powder.

[0037] Secondly, the carbon fiber and Ti 3 SiC 2 Pre-compression molding of mixed raw material powder. The pressure is 300MPa, and the holding time is 30s; then, the pre-pressed block is dried at 50° C. for 2 hours; finally, the pre-pressed block is sintered in a vacuum-protected atmosphere by hot pressing.

[0038] Finally, the carbon fiber reinforced Ti 3 SiC 2 composite material. The sintering temperature is 1800°C; the heating rate is 30°C / min; the sintering pressure is 30MPa; the...

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Abstract

The invention provides a carbon fiber-reinforced Ti3SiC2 composite material and a preparation method thereof, belonging to the technical field of composite materials. The preparation method comprisesthe following steps: S1, preparing carbon fiber-Ti3SiC2 mixed raw powder; S2, conducting pretreatment on carbon fiber-Ti3SiC2 mixed powder; and S3, carrying out hot-pressing vacuum-protective atmosphere sintering to prepare the carbon fiber-reinforced Ti3SiC2 composite material. The method is simple to operate and short in preparation period; the prepared carbon fiber-reinforced Ti3SiC2 compositematerial not only has lower friction coefficient and wear rate under the condition of room temperature, but also has the properties of high bearing capacity, high strength and the like; and the preparation method is convenient to operate, high in economic cost performance and suitable for producing friction-reducing and wear-resisting materials such as friction plates under severe working conditions.

Description

technical field [0001] The invention belongs to the technical field of composite materials, in particular to a carbon fiber reinforced Ti3SiC2 composite material and a preparation method thereof. Background technique [0002] Ti 3 SiC 2 As a machinable ceramic material composite with excellent properties, Ti prepared by compounding with the second phase 3 SiC 2 The matrix composite not only retains the original advantages of corrosion resistance, oxidation resistance and high strength stability, but also overcomes the Ti 3 SiC 2 Some disadvantages of a single material, such as: low hardness, oxidation resistance and strength, etc. Although Ti 3 SiC 2 The excellent properties of matrix composites have attracted extensive research. However, in improving and optimizing Ti 3 SiC 2 The friction and wear properties of matrix composites have still become the focus of research by relevant workers. [0003] at Ti 3 SiC 2 In the research of composite materials, Zhu Zhiwei...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/80C04B35/56C04B35/622C04B35/645
CPCC04B35/5615C04B35/622C04B35/645C04B2235/6562C04B2235/6567C04B2235/6581C04B2235/77C04B2235/96
Inventor 李艳国邹芹王明智赵玉成娄志超
Owner YANSHAN UNIV
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