Preparing method for ethanol-dispersed vanadium carbide boron carbide and carbon fiber friction material

A technology of vanadium carbide, boron carbide, and friction materials, which is applied in the field of friction material preparation, can solve problems such as potential safety hazards and reduced friction performance, and achieve the effects of improved wear resistance, high friction performance, 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) Pass the above-mentioned carburized carbon fiber blanket into a mixed gas of boron trichloride, methane, hydrogen and argon at a temperature of 900 °C, and the molar ratio of boron trichloride: methane: hydrogen: argon is 1:1: 3:4, the flow rate is controlled at 50ml / min, and the deposited boron carbide is treated for 24 hours to obtain a deposited boron carbide carbon fiber blanket;

[0021] (3) Immerse the above-mentioned deposited boron carbide carbon fiber blanket in ethanol slurry with a particle size of less than 0.3 μm and a content of 5% vanadium carbide, place it in an ultrasonic cleaner and fill it with vanadiu...

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) Pass the above-mentioned carburized carbon fiber blanket into a mixed gas of boron trichloride, methane, hydrogen and argon at a temperature of 1000 °C, and the molar ratio of boron trichloride: methane: hydrogen: argon is 1:1.5: 4.5:5, the flow rate is controlled at 350ml / min, and the deposited boron carbide is treated for 17 hours to obtain a deposited boron carbide carbon fiber blanket;

[0027] (3) Immerse the above-mentioned deposited boron carbide carbon fiber blanket into ethanol slurry with a particle size of less than 0.3 μm and a content of 12% vanadium carbide, place it in an ultrasonic cleaner and fill it wit...

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) Pass the above-mentioned carburized carbon fiber blanket into a mixed gas of boron trichloride, methane, hydrogen and argon at a temperature of 1100 °C, and the molar ratio of boron trichloride: methane: hydrogen: argon is 1:2: 6:6, the flow rate is controlled at 600ml / min, and the deposited boron carbide is treated for 10 hours to obtain a deposited boron carbide carbon fiber blanket;

[0033] (3) Immerse the above-mentioned deposited boron carbide carbon fiber blanket into an ethanol slurry with a particle size of less than 0.3 μm and a content of 20% vanadium carbide, place it in an ultrasonic cleaner and fill it wi...

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Abstract

The invention relates to a preparing method for an ethanol-dispersed vanadium carbide boron carbide and carbon fiber friction material. The preparing method is characterized in that a graphited carbon fiber blanket with the density being 0.1-1.8 g / cm<3> is subjected to carburizing treatment and then subjected to boron carbide deposition treatment, then ethanol-dispersed vanadium carbide filling treatment and embedding siliconizing treatment are carried out in sequence, then nitriding treatment is carried out in a nitrogen atmosphere, and the ethanol-dispersed vanadium carbide boron carbide and carbon fiber friction material is obtained. According to the preparing method, the friction material is prepared by carrying out the steps of carburizing, boron carbide deposition, vanadium carbide filling, embedding siliconizing, nitriding and the like on the graphited carbon fiber blanket, and the prepared friction material is high in strength, toughness and friction performance and adaptive to various weather 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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Patent Type & Authority Applications(China)
IPC IPC(8): C04B38/00C04B35/80C04B35/56C04B35/563C04B35/573C04B35/591C04B35/65C04B35/622C04B35/632
CPCC04B35/5607C04B35/563C04B35/573C04B35/591C04B35/622C04B35/632C04B35/806C04B38/00C04B2111/00362C04B2111/40C04B2235/46C04B2235/5248C04B2235/5256C04B2235/616C04B2235/6567C04B2235/658
Inventor 唐竹兴
Owner SHANDONG UNIV OF TECH
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