Manufacturing and tribological properties of copper matrix/carbon nanotubes composites
Manufacturing and tribological properties of copper matrix/carbon nanotubes composites
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DOI：
10.1016/j.wear.2010.11.010
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发表时间：
2011-02-10
期刊：
影响因子：
5
通讯作者：
Ko, Yuan-Yuan
中科院分区：
文献类型：
--
作者：
Lin, C. B.;Chang, Zue-Chin;Ko, Yuan-Yuan
采用干摩擦磨损试验研究了碳纳米管含量、滑动速度和法向载荷对马氏体545 C钢和碳纳米管含量为5%、10%、15%和20%的铜基复合材料摩擦学性能的影响碳纳米管，其通过真空烧结方法制造。摩擦系数随碳纳米管含量的降低而增大，当碳纳米管含量为10-15 vol. %时，磨损率最低。粘滑效应的增强导致摩擦系数和接触阻力随滑动速度的增大而增大。由于摩擦副的粘滑现象减少，犁削磨损和咬合磨损增加，其摩擦学性能随载荷的增加变化不明显。综上所述，当PV值为1.802时，磨损率最高。(C)2010 Elsevier B. V.保留所有权利。
The dry wear tests were introduced to investigate the tribology properties varying with the contents of carbon nanotubes, the sliding velocity and the normal loadings on martensitic 545C carbon steels and the copper matrix composites with 5, 10, 15 and 20 vol.% carbon nanotubes, which are fabricated by the vacuum sintering method. The friction coefficient increases as the content of carbon nanotubes decreases and the wear rate shows the lowest value when the carbon nanotubes content is 10-15 vol.%. The rise of stick-slip effect results in that the friction coefficient and the contact resistance increased with the increasing of sliding velocity. Because of the effect in decreasing the stick-slip phenomenon and in increasing the plow and seizing wear, the tribology properties do not change apparently with the increasing of loads. In summary, when PV value is 1.802, the wear rate is the highest. (C) 2010 Elsevier B.V. All rights reserved.