【摘 要】
：
Cu/Ti3SiC2/C/MWCNTs/Graphene nanocomposites were fabricated by vacuum hot-pressing sintering and hot isostatic pressing. Effect of La content on tribological behavior of Cu/Ti3SiC2/C/MWCNTs/Graphene n
【机 构】
：
School of Material Engineering, Chengdu Technological University, Chengdu Sichuan 611730, China;Scho
【出 处】
：
第十一届全国表面工程大会暨第八届全国青年表面工程学术会议
论文部分内容阅读
Cu/Ti3SiC2/C/MWCNTs/Graphene nanocomposites were fabricated by vacuum hot-pressing sintering and hot isostatic pressing. Effect of La content on tribological behavior of Cu/Ti3SiC2/C/MWCNTs/Graphene nanocomposite against Cu ring was evaluated using a special tribo-electric tester with high tangential sliding velocity and electric current charges. Effect of La content, normal force, sliding velocity on tribological behavior of the nanocomposite was investigated to analyze their interaction mechanism. The mutual influence of La content, normal force and sliding velocity were analyzed by orthogonality analysis. Variance analysis and range analysis were used to obtain the testing results. The morphologies of worn surfaces have been observed and analyzed by means of optical microscope (OM), scanning electron microscope (SEM) and energy dispersive x-ray spectroscopy (EDS). Results demonstrate that La content plays a primary role in the influence of friction and wear performance results. The wear mechanism of nanocomposites with 0.05wt.% La is abrasive wear, delamination wear and oxidation wear. And wear mechanism of nanocomposites with 0.1wt.% and 0.3wt.% La is adhesive wear and oxidation wear.
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