Tribological characteristics of C/C-SiC braking composites under dry and wet conditions
Tribological characteristics of C/C-SiC braking composites under dry and wet conditions作者机构:State Key Laboratory of Powder MetallurgyCentral South University Hunan Boyun New Material Co.Ltd
出 版 物:《中国有色金属学会会刊:英文版》 (Transactions of Nonferrous Metals Society of China)
年 卷 期:2008年第18卷第5期
页 面:1071-1075页
核心收录:
学科分类:08[工学] 0805[工学-材料科学与工程(可授工学、理学学位)] 080502[工学-材料学]
基 金:Project(2006AA03Z560) supported by the Hi-tech Research and Development Program of China Project(06JJ1007) supported by Excellent Youth of Hunan Province, China
摘 要:C/C-SiC braking composites,based on reinforcement of carbon fibers and matrices of carbon and silicon carbide,were fabricated by warm compaction and in situ reaction *** tribological characteristics of C/C-SiC braking composites under dry and wet conditions were investigated by means of MM-1000 type of friction testing *** influence of dry and wet conditions on the tribological characteristics of the C/C-SiC composites was *** dry condition,C/C-SiC braking composites show superior tribological characteristics,including high coefficient of friction (0.38),good abrasive resistance (thickness loss is 1.10 μm per cycle) and steady *** main wear mechanism is plastic deformation and abrasion caused by *** wet condition,frictional films form on the worn *** coefficient of friction (0.35) could maintain mostly,and the thickness loss (0.70 μm per cycle) reduces to a certain ***,braking curves are steady and adhesion and oxidation are the main wear mechanisms.