| QIAN Gang,FENG Yi,ZHANG Xue-bin,HUANG Xiao-chen.Review on Research of Cu-based Self-lubricating Electrical Contact Composites[J],45(1):7-12,27 |
| Review on Research of Cu-based Self-lubricating Electrical Contact Composites |
| Received:October 26, 2015 Revised:January 20, 2016 |
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| DOI：10.16490/j.cnki.issn.1001-3660.2016.01.002 |
| KeyWord:Cu composites electrical contact self-lubricating wear mechanisms |
| Author | Institution |
| QIAN Gang |
Instrumental Analysis Center, Hefei University of Technology, Hefei , China |
| FENG Yi |
School of Materials Science and Engineering, Hefei University of Technology, Hefei , China |
| ZHANG Xue-bin |
School of Materials Science and Engineering, Hefei University of Technology, Hefei , China |
| HUANG Xiao-chen |
School of Materials Science and Engineering, Hefei University of Technology, Hefei , China |
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| Abstract: |
| Cu-based self-lubricating composites are the most widely used sliding electrical contact materials due to their superior combined properties of high mechanical strength, excellent electrical and thermal conductivities and self-lubricating property. In this paper, the lubricating mechanism of Cu-based self-lubricating composites was reviewed based on the formation process of solidlubricating film at the tribo-interface and it was commented that this solid-lubricating film is responsible for the good wear performance of Cu-based self-lubricating composites by preventing the direct contact between the frictional surfaces. Meanwhile, the electrical wear mechanisms of Cu-based self-lubricating composites were introduced and it was indicated that abrasive wear, adhesive wear, delamination wear and oxidation wear are the dominant wear mechanisms of Cu-based self-lubricating composites during sliding electrical contact. Finally, the currently existing problems in the field of Cu-based self-lubricating electrical contact composites and corresponding research directions were put forward. |
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