Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5450365 | Progress in Natural Science: Materials International | 2017 | 5 Pages |
Abstract
Using carbon fiber needled fabrics with Cu-mesh and graphite powder as the preform, Cu mesh modified carbon/carbon(C/C-Cu) composites were prepared by chemical vapor deposition (CVD) with C3H6 and impregnation-carbonization (I/C) with furan resin. C/C composites, as a comparison, were also prepared. Their microstructures and wear morphologies were observed by optical microscopy (OM) and scanning electron microscope (SEM), respectively. Wear behavior of C/C and C/C-Cu composites under different applied loads were investigated on a pin-on-disc wear tester. The results show that Cu meshes are well dispersed and pyrolytic carbon is in rough laminar structure. Both C/C and C/C-Cu composites had good wear properties. The current-carrying capacity of C/C-Cu composites increases and the arc discharge is hindered as the applied load increases from 40Â N to 80Â N. Both C/C and C/C-Cu composites had good wear properties. The mass wear rate of C/C-Cu composites under 80Â N was only 4.2% of that under 60Â N. In addition, C/C-Cu composites represent different wear behaviors because wear mechanisms of arc erosion, abrasive wear, adhesive wear, and oxidative wear are changing under different applied loads.
Keywords
Related Topics
Physical Sciences and Engineering
Materials Science
Electronic, Optical and Magnetic Materials
Authors
Jian Yin, Hongbo Zhang, Xiang Xiong, Huijin Tao, Pei Wang, Chaoyong Deng,