Affiliation:
1. SSN College of Engineering
2. Indian Institute of Technology Delhi
Abstract
Effects of graphite content, and sliding speed on the tribological characteristics of copper-graphite composites under dry sliding condition were evaluated using a pin-on-disc tribometer. The worn surfaces of the composites were analyzed through Scanning Electron Microscopy (SEM). The experimental results revealed the improvement in wear resistance with increasing graphite content. The friction coefficient is also gradually decreasing upto 25 vol% graphite. Sliding speed has an effect on copper (5-15 vol%) graphite composites where as sliding speed has no effect in copper-(20-30 vol%) graphite composites. This difference is attributed to availability of self-lubricating graphite layer at the contact zone.
Publisher
Trans Tech Publications, Ltd.
Reference8 articles.
1. M Bravunovic, V.V. Konchits and N.K. Myshkin, Electrical contacts: fundamentals, applications and technology, 1st ed., CRC press, New York, (2007).
2. S.F. Moustfa, E.I. Badry, A.M. Sannad, Friction and wear of copper-graphite composite made with Cu-coated and uncoated graphite powders, Wear 253 pp.699-710, (2002).
3. A.K. Jha, S.V. Prasad and G.S. Upadhyaya, Dry sliding wear of sintered 6061 aluminum alloy-graphite particle composites, Tribol. Int. 22 p.321–327, (1989).
4. I. Yasar, A. Canakci and F. Arslan, The effect of brush spring pressure on the wear behaviour of copper–graphite brushes with electrical current, Tribol. Int. 40, p.1381–1386, (2007).
5. Cho Keun, Hong Ui, Lee Kang and Jang Ho, Tribological Properties and Electrical Signal Transmission of Copper–Graphite Composites, Tribol. Lett. 27, p.301–306, (2007).
Cited by
5 articles.
订阅此论文施引文献
订阅此论文施引文献，注册后可以免费订阅5篇论文的施引文献，订阅后可以查看论文全部施引文献