摘要
采用超声波渗硅技术,经化学气相沉积、硅化处理、浸渍/炭化增密和石墨化处理制备C/C-SiC复合材料。用偏光显微镜、扫描电子显微镜观测其微观组织结构,用X射线衍射仪进行物相分析,用MM-1000性摩擦磨损试验机检测C/C-SiC复合材料分别与C/C复合材料、30 CrSiMoVA钢和铁基粉末冶金材料组成摩擦副的摩擦性能。结果表明:C/C-SiC复合材料中只有C相和-βSiC相,C相的组成为炭纤维、沉积炭和树脂炭同时存在;C/C-SiC复合材料与铁基粉末冶金材料组成的摩擦副的摩擦性能优异,其摩擦因数为0.42,摩擦稳定性为85%,磨损值为3.9μm/(次.面)。
C/C-SiC composites were prepared via chemical vapor deposition （CVD）, siliconizing, resin impregnation and carbonization densification and graphitization. The microstructure of the composite was observed by using polarized light optical microscopy （PLOM）, scanning electron microscopy （SEM）. Phase analysis of the composite was carried out by XRD. The friction and wear properties of the composites with different counterparts were studied by ＇MM-1000 test, with C/C composites, 30CrSiMoVA and Fe-based powder metallurgy material as the counter- parts, respectively. The results showed that only silicon and SiC is detected, and C phase com- posed of carbon fibers, CVD carbon and resin carbon. The friction and wear properties of C/C- SiC composite and Fe-based powder metallurgy material are excellent. The friction coefficient and the friction stability are about 0.42 and 85 %, respectively, and the wear value is 3.9μm/（time· plane）.
出处
《广西大学学报（自然科学版）》
CAS
CSCD
北大核心
2009年第3期414-418,共5页
Journal of Guangxi University（Natural Science Edition）
基金
国家重点基础研究发展计划(973计划)资助项目(2006CB600901)
广西科学基金资助项目(2009BM6005)
广西教育厅项目(200808MS083)
广西民族大学科研项目
