Preparation method of ethanol-dispersed vanadium boride silicon carbide-carbon fiber friction material

A technology of vanadium boride silicon carbide and friction materials, which is applied in ceramic products, applications, household appliances, etc., can solve the problems of reduced friction performance and hidden safety hazards, and achieve the effect of improving wear resistance and high manufacturing cost.

Inactive Publication Date: 2018-05-22
SHANDONG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, the friction performance of C / C composite materials will be reduced in a humid environment, which will bring serious safety hazards to the use.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] (1) Set the density to 1.8g / cm 3 A mixture of propane gas and nitrogen gas was introduced into the graphitized carbon fiber blanket at a temperature of 900 ° C, the molar ratio of propane gas: nitrogen gas was 1:4, the flow rate was controlled at 50ml / min, and the carburized carbon fiber blanket was obtained after carburizing treatment for 24 hours. ;

[0020] (2) Immerse the above-mentioned carburized carbon fiber blanket into ethanol slurry with a particle size of less than 0.3 μm and a content of 5% vanadium boride, place it in an ultrasonic cleaner and fill it with vanadium boride for 50 minutes, take it out and dry it to obtain a filled vanadium boride. carbon fiber blanket;

[0021] (3) The above-mentioned filled vanadium boride carbon fiber blanket is passed into a mixed gas of trichloromethylsilane gas, hydrogen and argon at a temperature of 900 ° C, and the molar ratio of trichloromethylsilane gas: hydrogen: argon is 1: 5:5, the flow rate is controlled at 50m...

Embodiment 2

[0025] (1) Set the density to 0.8g / cm 3 A mixture of propane gas and nitrogen gas was introduced into the graphitized carbon fiber blanket at a temperature of 1000 ° C, the molar ratio of propane gas: nitrogen gas was 1:5, the flow rate was controlled at 350ml / min, and the carburizing carbon fiber blanket was obtained after carburizing treatment for 18 hours. ;

[0026] (2) Immerse the above-mentioned carburized carbon fiber blanket into ethanol slurry with a particle size of less than 0.3 μm and a content of 12% vanadium boride, place it in an ultrasonic cleaner and fill it with vanadium boride for 40 minutes, take it out and dry it to obtain a filled vanadium boride. carbon fiber blanket;

[0027] (3) The above-mentioned filled vanadium boride carbon fiber blanket is fed into a mixed gas of trichloromethylsilane gas, hydrogen and argon at a temperature of 1000 ° C, and the molar ratio of trichloromethylsilane gas: hydrogen: argon is 1: 4:4, the flow rate is controlled at 3...

Embodiment 3

[0031] (1) Set the density to 0.1g / cm 3 The graphitized carbon fiber blanket is fed with a mixture of propane gas and nitrogen gas at a temperature of 1100 ° C, the molar ratio of propane gas: nitrogen is 1: 6, the flow rate is controlled at 600ml / min, and the carburizing treatment is carried out for 10 hours to obtain a carburized carbon fiber blanket. ;

[0032] (2) Immerse the above-mentioned carburized carbon fiber blanket into ethanol slurry with a particle size of less than 0.3 μm and a content of 20% vanadium boride, place it in an ultrasonic cleaner and fill it with vanadium boride for 30 minutes, take it out and dry it to obtain a filled vanadium boride. carbon fiber blanket;

[0033] (3) The above-mentioned filled vanadium boride carbon fiber blanket is fed into a mixed gas of trichloromethylsilane gas, hydrogen and argon at a temperature of 1100 ° C, and the molar ratio of trichloromethylsilane gas: hydrogen: argon is 1: 3: 3, the flow rate is controlled at 600ml / ...

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Abstract

The invention provides a preparation method of an ethanol dispersed vanadium boride silicon carbide-carbon fiber friction material. The preparation method is characterized in that graphited carbon fiber blanket with the density being 0.1 to 1.8g / cm<3> is subjected to carburizing treatment; then, ethanol dispersed vanadium boride filling treatment is performed; next, silicon carbide deposition treatment is performed; then, embedding siliconing treatment is performed; next, nitridation treatment is performed in nitrogen atmosphere to obtain the ethanol dispersed vanadium boride silicon carbide-carbon fiber friction material. The graphited carbon fiber blanket is used; the friction material preparation is realized through the steps of carburization, vanadium boride filling, silicon carbide deposition, embedding siliconing, nitridation and the like; the prepared friction material has high intensity, high toughness and high friction performance, and belongs to a friction material adapting to various climate conditions.

Description

technical field [0001] The invention relates to a preparation method of a carbon fiber and ceramic material composite friction material, and belongs to the technical field of composite material preparation. Background technique [0002] At present, carbon fiber and carbon (C / C) composite materials are mainly used as friction materials. Due to the relatively low wear resistance of C / C composite materials, people are looking for the preparation method of friction materials with higher wear resistance. In addition, the friction performance of C / C composites will be reduced in a humid environment, which brings serious safety hazards to the use. SUMMARY OF THE INVENTION [0003] The purpose of the present invention is to provide a method for preparing a friction material capable of overcoming the above-mentioned defects, achieving higher strength, higher friction performance and adapting to various climatic conditions. Its technical solutions are: [0004] The preparation met...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B38/00C04B35/84C04B35/584C04B35/622C04B35/634C04B35/65C04B35/58C04B35/565
CPCC04B35/573C04B35/58064C04B35/591C04B35/622C04B35/63416C04B35/65C04B35/806C04B38/00C04B2235/422C04B2235/46C04B2235/5248C04B2235/616C04B2235/658
Inventor 唐竹兴
Owner SHANDONG UNIV OF TECH
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