Ceramic matrix composite material applied to high-speed motor car brake disc and preparation method thereof

A technology for composite materials and high-speed motor vehicles, which is applied in the field of ceramic-based composite materials and its preparation for high-speed motor vehicle brake discs. It can solve the problems of easy cracking of C/SiC composite materials, large thermal expansion coefficient of SiC, and influence on mechanical properties, and achieve heat resistance. Enhanced shock performance, improved anti-oxidation performance, and good heat dissipation performance

Inactive Publication Date: 2014-04-16
TAICANG PAIOU TECH CONSULTING SERVICE
View PDF4 Cites 20 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

C/SiC (carbon fiber reinforced silicon carbide) ceramic matrix composite brake discs have a series of excellent performances such as corrosion resistance, wear resistance, oxidation resistance and high friction coefficient compared with the current C/C composite brake discs in service,

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

Example Embodiment

[0013] Example

[0014] A ceramic matrix composite material for brake discs of high-speed trains. It is composed of a gradient SiC matrix and a C / C framework. It is characterized in that the gradient SiC matrix is ​​composed of silicon carbide and carbon, and the ratio of silicon carbide and carbon in the matrix increases from 0. To 100%. The gradient SiC is to prepare a gradient SiC matrix on the porous C / C framework by a chemical vapor deposition method to densify the composite material. The C / C framework is to deposit a layer of carbon matrix on the carbon fiber braid, and the thickness of the carbon matrix is ​​500 μm.

[0015] The specific steps of the preparation method of the ceramic matrix composite material are as follows:

[0016] (1) Carbon fiber is woven or laminated to form a fabric reinforced structure with the shape of the brake disc of high-speed trains;

[0017] (2) Synthesis of C / C framework by liquid phase impregnation method;

[0018] (3) Through the chemical vapo...

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

No PUM Login to view more

Abstract

The invention discloses a ceramic matrix composite material applied to a high-speed motor car brake disc and a preparation method of the ceramic matrix composite material. The ceramic matrix composite material consists of a gradient SiC matrix and a C/C framework, and is characterized in that the gradient SiC matrix consists of silicon carbide and carbon; the percentage of silicon carbide to carbon in the matrix is increased to be 100% from 0%; the C/C framework is prepared by depositing a layer of carbon matrix on a carbon fiber woven body, and using chloromethyl silane, dichloromethyl silane and trichloromethyl silane as precursors so as to obtain the SiC and C matrixes of different ratios by using a chemical vapor deposition method. The ceramic matrix composite material well combines the advantages of the C/C composite material and the C/SiC composite material, thermal stress caused by thermal shock can be effectively alleviated, the thermal shock resistance is obviously enhanced, and the ceramic matrix composite material has great application prospect in the high-speed motor car brake disc.

Description

technical field [0001] The invention relates to a ceramic-based composite material and a preparation method thereof, in particular to a ceramic-based composite material for high-speed train brake discs and a preparation method thereof. technical background [0002] The brake disc is a key component of the Class A braking system of a motor vehicle, and its performance is directly related to the safety and reliability of the motor vehicle operation. C / SiC (carbon fiber reinforced silicon carbide) ceramic matrix composite brake discs have a series of excellent performances such as corrosion resistance, wear resistance, oxidation resistance and high friction coefficient compared with the current C / C composite brake discs in service, but due to SiC The thermal expansion coefficient of the C / SiC composite is relatively large, and the severe thermal shock that the C / SiC composite material is subjected to in practical applications makes the C / SiC composite material easy to crack, an...

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
IPC IPC(8): C04B35/80C04B35/565C04B35/622
Inventor 陈照峰汪洋
Owner TAICANG PAIOU TECH CONSULTING SERVICE
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