炭/炭复合材料摩擦膜的显微结构研究  

Study on the Microstructure of C/C Composite Brakes Worn Surface

作　　者：王禹[1] 雷宝灵[2] 贺连龙[1] 易茂中[2] 

机构地区：[1]中国科学院金属研究所,沈阳110016 [2]中南大学粉末冶金重点实验室,长沙410083

出　　处：《材料研究学报》2010年第5期471-477,共7页Chinese Journal of Materials Research

基　　金：国家重点基础研究发展计划2006CB600905资助项目~~

摘　　要：用扫描电子显微镜(SEM)和透射电子显微镜(TEM)分析CVD增密和2300℃热处理炭/炭复合材料刹车片在模拟飞机正常刹车状况下的摩擦表面形貌和显微结构,研究了摩擦膜结构对摩擦磨损性能的影响。结果表明:在模拟飞机正常着陆的试验中,在炭/炭复合材料的摩擦表面形成一层低织构热解炭的摩擦膜,片层厚度约为1μm。The morphology and microstructure of the worn surface of carbon-carbon（C/C） composites, which were fabricated by CVD process and finally heat treated after 2300℃,were studied using scanning electron microscopy and transmission electron microscope.Most pyrolytic carbon around the fiber is high-textured pyrolytic,and there is a 1μm thick low-textured pyrolytic intergrade layer between the fiber and the high-textured pyrolytic.The wear tests were simulating the normal landing of aircraft braking.The results showed that a compacted low-textured pyrolytic carbon friction film which is about 1μm thick covered the worn surface after thewear tests.

关 键 词：复合材料 炭/炭复合材料 摩擦磨损性能 摩擦膜 磨屑 

分 类 号：TG113[金属学及工艺—物理冶金]