Fabrication and wear behavior of CNT/Al composites
Aluminum matrix composites reinforced with carbon nanotube were fabricated by a powder metallurgy method.The effects of carbon nanotube content on the relative density,the hardness,and the friction and wear behavior of the composites under dry sliding condition were investigated using the ball (pin)-on-block tester.By scanning electron microscopy (SEM),the worn surfaces and worn chips were observed,and the wear mechanism of composites was analyzed and discussed.The results indicate that the addition to the aluminum matrix of 2.0％(mass fraction) carbon nanotube causes the increase in the Vickers hardness of about 80％.Within the range of carbon nanotubes content from 1.0％ to 2.0％,both the friction coefficient and wear rate of composites decrease with the increase of carbon nanotube content.The delamination wear is the main wear mechanism for the composites.
carbon nanotubes Al matrix composite wear behavior
JIANG Jin-long WANG Hai-zhong YANG hua XU Jin-cheng
School of Science,Lanzhou University of Technology,Lanzhou 730050,China State Key Laboratory of Solid Lubrication,Lanzhou Institute of Chemical Physics,Chinese Academy of S Department of Materials Science,Lanzhou University,Lanzhou 730000,China
国际会议
2007年国际有色金属大会(International Conference of Nonfereous Materials 2007)(ICNFM)
长沙
英文
2007-11-28（万方平台首次上网日期，不代表论文的发表时间）