Tribological Behaviors of Cu/Ti3SiC2/C/MWCNTs Composites with Electric Current

被引：8
作者：
Liu Wanxia [1 ]
Jiang Xiaosong [1 ]
Shao Zhenyi [2 ]
Mo Defeng [3 ]
Zhu Degui [1 ]
Zhang Man [1 ]
机构：
[1] Southwest Jiaotong Univ, Sch Mat Sci & Engn, Chengdu 610031, Sichuan, Peoples R China
[2] Chengdu Technol Univ, Dept Mech Engn, Chengdu 611730, Sichuan, Peoples R China
[3] Chinese Acad Sci, Shanghai Inst Tech Phys, Key Lab Infrared Imaging Mat & Detectors, Shanghai 200083, Peoples R China
来源：
JOURNAL OF COMPUTATIONAL AND THEORETICAL NANOSCIENCE | 2015年 / 12卷 / 09期
基金：
中国国家自然科学基金;
关键词：
Cu/Ti3SiC2/C/MWCNTs Composites; Friction and Wear with Electric Current; Self-Lubricating; Wear Mechanism; Orthogonal Analysis; SLIDING WEAR BEHAVIOR; MECHANICAL-PROPERTIES; MATRIX COMPOSITE; CU COMPOSITES; TEMPERATURE; FRICTION; TI3SIC2;
D O I：
10.1166/jetn.205.4160
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Cu/Ti3SiC2/C/MWCNTs composite were fabricated by vacuum hot-pressing sintering. Tribological behavior of Cu/Ti3SiC2/C/MWCNTs composite against Cu ring was evaluated using a special triboelectric tester with high tangential sliding velocity and electric current charges. The influences of electric current, normal force, sliding velocity on tribological behavior of the composite were investigated, and their interacting mechanism was analyzed. Orthogonality analysis was used to study the mutual influence by electric current, normal force and sliding velocity. The testing results were obtained through variance analysis and analysis of range. The morphologies of worn surfaces have been observed and analyzed by means of optical microscope, scanning electron microscope, energy dispersive X-ray spectroscopy and stereomicroscope. Results demonstrated that during the progress of friction and wear with electric current, sliding velocity is the main factor affecting tribological performance in this experiment because sliding velocity affects wear characteristics of Cu/Ti3SiC2/C/MWCNTs composite by changing the shear stress between the friction pair. Based on morphologies of worn surfaces of Cu/Ti3SiC2/C/MWCNTs composites, it can be concluded that electric current affects tribological properties of Cu/Ti3SiC2/C/MWCNTs composite by influencing temperature of the surface material and surface lubricant film is enabling to form by MWCNTS. Friction and wear mechanism with electric current have been analyzed.
引用
收藏
页码：2664 / 2672
页数：9
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