Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
617401 | Wear | 2014 | 5 Pages |
Abstract
Using 2.5-dimensional carbon fibre fabric as the reinforcement, carbon/carbon-copper (C/C-Cu) composites were prepared by a combination of impregnation-carbonisation (I/C) with furan resin and melt Cu alloy infiltration under pressure. The effect of heat treatment temperature for porous carbon/carbon composites (C/C substrates) on the structure and sliding wear behaviour of C/C-Cu composites under an electric current was investigated. The results show that heat treatment temperature has great influence on the structure, graphitisation degree and sliding wear behaviour of C/C-Cu composites. With the increase of heat treatment temperature, wear rates of C/C-Cu composites decrease first and then increase. The composites treated at 2573Â K have the lowest wear rates of 36.60Â mm/10,000Â km and 22.80Â g/10,000Â km, which is about half of those of Cu-graphite composites now used in high-speed railways. In addition, the main wear mechanisms were abrasive wear and arc erosion.
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Colloid and Surface Chemistry
Authors
Jian Yin, Hongbo Zhang, Cui Tan, Xiang Xiong,