炭/炭复合材料航空刹车副的湿态摩擦性能  

Tribological properties of carbon/carbon composites under wet condition

作　　者：于澍[1] 熊翔[1] 刘根山[1] 黄伯云[1] 张传福[1] 

机构地区：[1]中南大学粉末冶金国家重点实验室,长沙410083

出　　处：《中国有色金属学报》2006年第5期841-846,共6页The Chinese Journal of Nonferrous Metals

基　　金：国家重点基础研究发展计划资助项目(2006CB600906)

摘　　要：对两种不同的炭/炭复合材料湿态下的摩擦磨损性能进行对比分析。结果表明:具有粗糙层热解炭的炭/炭刹车副由于其晶格结构较为完善,生长组织择优取向度和各向异性度均高于含有光滑层结构热解炭的炭/炭刹车副。前者的石墨化度及可石墨化能力均大于后者,由于前者的表面缺陷较少,所吸附的水分子较少,因而在湿态下刹车时,其刹车力矩将很快恢复到正常干态刹车时的力矩水平,对环境的适应能力大于光滑层结构的炭/炭刹车副。The tribological properties of two different carbon/carbon composites under wet condition were analyzed. The results show that the carbon/carbon composites with rough lamina have preferred orientation, higher anisotropy and graphitization degree than the carbon/carbon composites with smooth lamina. The braking moment of the former under wet condition raises to that under dry condition rapidly for its better microstructure with little water molecule adsorbed in defect, the adaptability to environment is stronger than that of the carbon/carbon composites with smooth lamina.

关 键 词：炭/炭复合材料 湿态环境 摩擦性能 

分 类 号：TB332[一般工业技术—材料科学与工程]