固体火箭技术2007，Vol.30Issue(5)：454-458,5.
C/SiC刹车材料的摩擦磨损性能
Frictional properties of C/SiC brake materials
摘要
Abstract
The 3D needle-punched carbon/silicon carbide (C/SiC) brake materials were prepared by chemical vapor infiltration combined with liquid melt infiltration. The structural characteristics of C/SiC brake materials were studied by means of optical microscopy, SEM, XRD, and their frictional properties and wear mechanisms for a full-size aircraft wheel and brake assembly were measured on an electrical simulation dynamometer. The results indicate that the brake materials are composed of 35% ～65 % C,25% ～55 % SiC, and ～ 10 % Si. SiC and Si are mostly distributed in the short fiber web layers. Under the same brake pressure,the average friction coefficient increases to the maximum value when braking speed is 150 km/h and then decreases with the increase of initial braking speed. The friction coefficient decreases with the increase of braking pressure at the same initial brake der normal landing condition matches the landing response of aircraft with anti-skid braking system, which would lead to higher brake efficiency.关键词
C/SiC/刹车材料/制备/摩擦磨损性能Key words
carbon/silicon carbide/brake materials/preparation/frictional properties分类
通用工业技术引用本文复制引用
田广来,范尚武,张立同,徐永东,成来飞..C/SiC刹车材料的摩擦磨损性能[J].固体火箭技术,2007,30(5):454-458,5.基金项目
The authors acknowledge the financial support of Natural Science Foundation of china (Contract No.90405015 ) and program for Changjiang Scholars and Innovative Research Team in University. （Contract No.90405015 ）
