Effect of CNTs in Copper Matrix on Mechanical Characteristics and Tribological Behavior under Dry Sliding and Boundary Lubrication Conditions.

Clicks: 178
ID: 26319
2019
In the present work, the mechanical and tribological properties of carbon nanotube (CNT)-reinforced Cu matrix composites featuring 0-1.8 vol% CNTs prepared by spark plasma sintering under dry sliding and boundary lubrication conditions were investigated. The results of microstructure revealed that the bonding interface in Cu/CNT composites was very well established. Additionally, the addition of CNTs has a positive effect on improving the hardness and tensile strength of the composites, while the stress-strain response quasi-static tensile test confirms the same results. CNTs are proved to lead to certain self-lubrication. The addition of CNTs could result in decreased coefficient of friction (COF) and wear rates by reducing adhesive wear under dry sliding conditions, while the oil lubricating film was the major reason for decreased COF under boundary lubrication conditions.
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Authors Zhao, Lin;Yao, Pingping;Zhou, Haibin;Gong, Taimin;Deng, Minwen;Zhang, Zhongyi;Xiao, Yelong;Deng, Hui;Li, Yang;Luo, Fenghua;
Journal Materials (Basel, Switzerland)
Year 2019
DOI E2203
URL
Keywords Keywords not found

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