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Method for preparing ultrasonic dispersion tantalum boride silicon carbide-carbon fiber friction material

A technology of tantalum boride silicon carbide and friction material, which is applied in the field of preparation of friction material, can solve problems such as hidden dangers of safety and reduced friction performance, and achieve the effects of improving wear resistance and high manufacturing cost.

Inactive Publication Date: 2016-04-13
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 The graphitized carbon fiber blanket is fed with a mixed gas of propane gas and nitrogen at a temperature of 900°C. The molar ratio of propane gas: nitrogen is 1:4, the flow rate is controlled at 50ml / min, and the carburizing treatment is performed for 24 hours to obtain a carburized carbon fiber blanket. ;

[0020] (2) Immerse the above-mentioned carburized carbon fiber blanket into a slurry with a particle size of less than 0.3 μm and a content of 5% tantalum boride, place it in an ultrasonic cleaner and fill it with tantalum boride for 50 minutes, take it out and dry it to obtain a carbon fiber filled with tantalum boride Blanket, the slurry is an aqueous solution containing 1.5% ammonium polyacrylate with a pH value of 9;

[0021] (3) Pass the above-mentioned filled tantalum boride carbon fiber blanket into a mixed gas of trichloromethylsilane gas, hydrogen gas and argon gas at a temperature of 900 °C, and the molar ratio of trichlo...

Embodiment 2

[0025] (1) Set the density to 0.8g / cm 3 The graphitized carbon fiber blanket is fed with a mixture of propane gas and nitrogen at a temperature of 1000°C. The molar ratio of propane gas: nitrogen is 1:5, the flow rate is controlled at 350ml / min, and the carburizing treatment is performed for 18 hours to obtain a carburized carbon fiber blanket. ;

[0026] (2) Immerse the above-mentioned carburized carbon fiber blanket into a slurry with a particle size of less than 0.3 μm and a content of 12% tantalum boride, place it in an ultrasonic cleaner and fill it with tantalum boride for 40 minutes, take it out and dry it to obtain a carbon fiber filled with tantalum boride blanket, the slurry is an aqueous solution containing 1% ammonium polyacrylate with a pH value of 10;

[0027] (3) Pass the above-mentioned filled tantalum boride carbon fiber blanket into a mixed gas of trichloromethylsilane gas, hydrogen gas and argon gas at a temperature of 1000 °C, and the molar ratio of trichl...

Embodiment 3

[0031] (1) Set the density to 0.1g / cm 3 The graphitized carbon fiber blanket is fed with a mixed gas of propane gas and nitrogen 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 performed for 10 hours to obtain a carburized carbon fiber blanket. ;

[0032] (2) Immerse the above-mentioned carburized carbon fiber blanket into a slurry with a particle size of less than 0.3 μm and a content of 20% tantalum boride, place it in an ultrasonic cleaner and fill it with tantalum boride for 30 minutes, take it out and dry it to obtain a carbon fiber filled with tantalum boride blanket, the slurry is an aqueous solution containing 0.5% ammonium polyacrylate with a pH value of 11;

[0033] (3) Pass the above-mentioned filled tantalum boride carbon fiber blanket into a mixed gas of trichloromethylsilane gas, hydrogen gas and argon gas at a temperature of 1100 °C, and the molar ratio of tr...

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Abstract

A method for preparing an ultrasonic dispersion tantalum boride silicon carbide-carbon fiber friction material is characterized in that a graphitized carbon fiber blanket with the density being 0.1-1.8 g / cm<3> is subjected to carburizing treatment, then subjected to ultrasonic dispersion tantalum boride filling treatment, subjected to silicon carbide deposition and subjected to embedding siliconizing, and then nitridation is carried out in the nitrogen atmosphere to prepare the ultrasonic dispersion tantalum boride silicon carbide-carbon fiber friction material. According to the method, the graphitized carbon fiber blanket is adopted, and the friction material is prepared through the steps of carburization, tantalum boride filling, silicon carbide deposition, embedding siliconizing, nitridation and the like. The prepared friction material is high in strength, toughness and friction performance and can adapt to various climatic conditions.

Description

technical field [0001] The invention relates to a preparation method of a friction material composited by carbon fiber and ceramic 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. Since the wear resistance of C / C composite materials is relatively low, people are looking for a method for preparing friction materials with higher wear resistance. 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. Contents of the invention [0003] The object of the present invention is to provide a method for preparing a friction material that can overcome the above-mentioned defects, achieve higher strength, higher friction performance and adapt to various climatic conditions. Its technical solution is: [0004] The method of ...

Claims

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Application Information

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IPC IPC(8): C04B38/00C04B35/80C04B35/58C04B35/565C04B35/573C04B35/591C04B35/65C04B35/622
CPCC04B35/565C04B35/573C04B35/58064C04B35/591C04B35/622C04B35/806C04B38/00C04B2111/00362C04B2111/40C04B2235/46C04B2235/5248C04B2235/5256C04B2235/616C04B2235/6567C04B2235/658
Inventor 唐竹兴
Owner SHANDONG UNIV OF TECH
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