Tribological behaviors of Gra./Cu and CNTs/Cu composites with and without electric current
Gra./Cu composites and CNTs/Cu composites were respectively fabricated by powder metallurgy techniques.The experiments of high speed sliding with and without electric current were carried out to investigate their tribological behaviors.The results show that the friction coefficients and wear rates with electric current are higher than without electric current; under the same testing condition the friction coefficients and wear rates of CNTs/Cu are lower and the worn surfaces are more planar than Gra./Cu.CNTs can debase the effect of heat generating during sliding process on the composites.The tribological properties of CNTs/Cu composites are more excellent than Gra./Cu composites.
Wei Xu Binghong Li
College of Mechanical and Electrical Engineering,Xian Polytechnic University,Xian 710048,China Xian Research Institute of China Coal Technology& Engineering Group Corp,Xian 710077,China
国际会议
广州
英文
1-4
2018-05-11（万方平台首次上网日期，不代表论文的发表时间）