Preparing method for ethanol-dispersed hafnium boride silicon carbide and carbon fiber friction material

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

Inactive Publication Date: 2016-03-23
SHANDONG UNIV OF TECH
View PDF8 Cites 1 Cited by
  • 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

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

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 in ethanol slurry with a particle size of less than 0.3 μm and a content of 5% hafnium boride, place it in an ultrasonic cleaner and fill it with hafnium boride for 50 minutes, take it out and dry it to obtain the filled hafnium boride carbon fiber blanket;

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

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 in ethanol slurry with a particle size of less than 0.3 μm and a content of 12% hafnium boride, place it in an ultrasonic cleaner and fill it with hafnium boride for 40 minutes, take it out and dry it to obtain the filled hafnium boride carbon fiber blanket;

[0027] (3) Pass the above-mentioned filled hafnium 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 trichloromethylsilane gas: hydrogen gas: argon gas is 1: 4:4, the flow rate is controlled at 350ml / mi...

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 in ethanol slurry with a particle size of less than 0.3 μm and a content of 20% hafnium boride, place it in an ultrasonic cleaner and fill it with hafnium boride for 30 minutes, take it out and dry it to prepare the filled hafnium boride carbon fiber blanket;

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

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

PropertyMeasurementUnit
densityaaaaaaaaaa
melting pointaaaaaaaaaa
diameteraaaaaaaaaa
Login to view more

Abstract

The invention relates to a preparing method for an ethanol-dispersed hafnium boride silicon carbide and carbon fiber friction material. The preparing method is characterized in that a graphited carbon fiber blanket with the density ranging from 0.1 g / cm<3> to 1.8 g / cm<3> is subjected to carburizing treatment, padding treatment through ethanol-dispersed hafnium boride, carbide silicon depositing treatment and buried siliconizing treatment in sequence, then nitriding treatment is carried out in a nitrogen atmosphere, and the ethanol-dispersed hafnium boride silicon carbide and carbon fiber friction material is obtained. According to the preparing method, the fiction material is prepared by performing the steps of carburizing, hafnium boride padding, carbide silicon depositing, buried siliconizing, nitriding and the like on the graphited carbon fiber blanket, and the prepared friction material is high in strength, tenacity and friction performance and adapts 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

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/80C04B35/584C04B35/565C04B35/58C04B35/632C04B35/65C04B35/622
CPCC04B35/565C04B35/58078C04B35/584C04B35/622C04B35/632C04B35/65C04B35/806C04B2235/428C04B2235/46
Inventor 唐竹兴
Owner SHANDONG UNIV OF TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap