Effects of fibre orientation on wear behavior of copper mesh modified-carbon/carbon composite under electric current. (December 2017)

• Record Type: Journal Article
• Authors: Wang, Pei; Zhang, Hongbo; Yin, Jian; Xiong, Xiang; Deng, Chaoyong
• Is Part Of: Tribology international. Volume 116(2017)
• Page Start: 310
• Page End: 319
• Publication Date: 2017-12
• Subjects: Copper mesh -- Wear -- Electric current -- Fibre orientation; Tribology -- Periodicals; 621.89
• DOI: 10.1016/j.triboint.2017.07.011
• Languages: English
• ISSNs: 0301-679X

Abstract

Abstract: To obtain a sliding contact strip material with good electrical conductivity and wear resistance, carbon fibre/copper mesh reinforced carbon composite was fabricated by a chemical vapor infiltrated process and impregnation and carbonization technique. Friction and wear behaviors of the composite were investigated using a ring-on-block-type wear tester under an AC electric current of 150 A with a normal load of 90 N and sliding speeds ranging from 10 to 60 m/s for three principal orientations of the fibre, i.e. parallel orientation, vertical orientation and normal orientation. The arc discharge rate evaluating the carrying-current quality was used. The results showed that wear behavior of the composite was significantly influenced by the fibre orientation during current-carrying friction. Graphical abstract: A carbon fibre/copper fibre-reinforced carbon composite was fabricated using a chemical vapor infiltration process and impregnation and carbonization technique. The wear behaviors of the composites for three sliding directions were investigated under an AC electric current. The wear mechanisms were used to explain the differences in the wear behaviors of the three orientations. Highlights: A carbon fiber/copper fiber-reinforced carbon matrix composite are fabricated. The wear behaviours for three sliding directions were investigated under an AC electric current. An intuitive and effectual method was used to evaluate the current-carrying quality. Two physical models were used to explain the wear mechanisms.