Preparing method of synthetic-fat dispersion niobium boride and silicon carbide-carbon fiber friction material

A technology of boride niobium silicon carbide and friction material, which is applied in the field of preparation of friction material, can solve the problems of reduced friction performance and potential safety hazards, and achieves the effects of improving wear resistance and high manufacturing cost

Inactive Publication Date: 2016-03-23
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 reduc

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0018] Example 1

[0019] (1) Set the density to 1.8g / cm 3 The graphitized carbon fiber blanket is fed with a mixture 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 24 hours to obtain a carburized carbon fiber blanket ;

[0020] (2) The above carburized carbon fiber blanket is immersed in a grease slurry with a particle size of less than 0.3μm and a content of 5% niobium boride, placed in an ultrasonic cleaner, filled with niobium boride for 50 minutes, and taken out and dried to obtain a filled boride Niobium carbon fiber blanket, the synthetic resin slurry is an ethanol solution containing 5% synthetic resin;

[0021] (3) Pass the above-mentioned carbon fiber blanket filled with niobium boride into a mixed gas of trichloromethylsilane, hydrogen and argon at a temperature of 900°C. The molar ratio of trichloromethylsilane: hydrogen: argon is 1: 5:5, th...

Example Embodiment

[0024] Example 2

[0025] (1) Change 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℃, the molar ratio of propane gas: nitrogen is 1:5, the flow rate is controlled at 350ml / min, and the carburizing treatment is 18 hours to obtain a carburized carbon fiber blanket ;

[0026] (2) The carburized carbon fiber blanket is immersed in a grease slurry with a particle size of less than 0.3μm and a content of 12% niobium boride, placed in an ultrasonic cleaner, filled with niobium boride for 40 minutes, and taken out and dried to obtain a filled boride Niobium carbon fiber blanket, the synthetic resin slurry is an ethanol solution containing 12% synthetic resin;

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

Example Embodiment

[0030] Example 3

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

[0032] (2) The carburized carbon fiber blanket is immersed in a grease slurry with a particle size of less than 0.3μm and a content of 20% niobium boride, placed in an ultrasonic cleaner and filled with niobium boride for 30 minutes, taken out and dried to obtain a filled boride Niobium carbon fiber blanket, the synthetic resin slurry is an ethanol solution containing 20% ​​synthetic resin;

[0033] (3) Pass the above-mentioned carbon fiber blanket filled with niobium boride into a mixed gas of trichloromethylsilane, hydrogen and argon at a temperature of 1100°C. The molar ratio of trichloromethylsilane: hydrogen: argon is 1: 3:3...

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Abstract

The invention discloses a preparing method of a synthetic-fat dispersion niobium boride and silicon carbide-carbon fiber friction material. The preparing method is characterized by including the steps that a graphitized carbon fiber blanket with the density of 0.1-1.8 g/cm<3> is subjected to synthetic-fat dispersion niobium boride filling after being subjected to carburization; silicon carbide is deposited, then embedding siliconizing is carried out, nitridation is carried out in nitrogen atmosphere, and the synthetic-fat dispersion niobium boride and silicon carbide-carbon fiber friction material is prepared. According to the preparing method, the friction material is prepared from the graphitized carbon fiber blanket through the steps of carburization, niobium boride filling, silicon carbide deposition, embedding siliconizing, nitridation and the like; the prepared friction material is high in strength, tenacity and friction performance, and is a friction material adapting to various climate 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 preparatio...

Claims

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Application Information

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IPC IPC(8): C04B35/80C04B35/584C04B35/565C04B35/58C04B35/632C04B35/65C04B35/622
CPCC04B35/565C04B35/58064C04B35/584C04B35/622C04B35/632C04B35/65C04B35/806C04B2235/428C04B2235/46C04B2235/48
Inventor 唐竹兴
Owner SHANDONG UNIV OF TECH
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