Comparative study of mechanical and wear behavior of Cu/WS2 composites fabricated by spark plasma sintering and hot pressing
Comparative study of mechanical and wear behavior of Cu/WS2 composites fabricated by spark plasma sintering and hot pressing
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放电等离子烧结与热压制备Cu/WS2复合材料力学与磨损行为对比研究
DOI：
10.1016/j.jmst.2017.06.014
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发表时间：
2017-11
影响因子：
10.9
通讯作者：
Fuhui Wang
中科院分区：
文献类型：
--
作者：
Qunchang Wang;Minghui Chen;Zhongmao Shan;Chengguo Sui;Lin Zhang;Shenglong Zhu;Fuhui Wang
比较研究了火花等离子烧结（SPS）和热压（HP）制备的二硫化铜钨（Cu/WS2）复合材料的力学性能和磨损性能。结果表明，润滑油ws2的加入显著降低了SPS制备的Cu基复合材料的磨损率，对其磨损性能影响最大的是ws2含量为20%。对复合材料的磨损率影响不大，但摩擦系数明显降低。两种工艺制备的自润滑复合材料摩擦性能的差异与其力学性能的不同密切相关。放电等离子烧结过程中发生了剧烈的界面反应，导致界面处形成脆性相。
The mechanical and wear behavior of copper-tungsten disulfide (Cu/WS2) composites fabricated by spark plasma sintering (SPS) and hot pressing (HP) was investigated, comparatively. Results indicated that the addition of lubricant WS2substantially reduced wear rate of the Cu matrix composites fabricated by SPS, and the optimum content of WS2is 20 wt% with regard to the wear behavior. However, it affected a little to the wear rate while dramatically decreased the friction coefficient of the composite fabricated by HP. This difference in friction behavior of the self-lubricating composites fabricated by the two techniques was closely related to their different mechanical properties. Severe interfacial reaction occurred during spark plasma sintering, leading to brittle phase formation at interface.
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