材料科学
复合材料
摩擦学
放电等离子烧结
润滑
极限抗拉强度
碳纳米管
微观结构
胶粘剂
图层(电子)
作者
Lin Zhao,Pingping Yao,Haibin Zhou,Taimin Gong,Minwen Deng,Zhongyi Zhang,Yelong Xiao,Hui Deng,Yan Li,Fenghua Luo
出处
期刊:Materials
[MDPI AG]
日期:2019-07-09
卷期号:12 (13): 2203-2203
被引量:4
摘要
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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