摘要
A low-cost carbon/silicon carbide (C/SiC) composite was manufactured by phenolic resin impregnation-pyrolysis combined with liquid silicon infiltration. The carbon fiber preform was prepared by three-dimensional needling. A carbon/carbon composite with a density of 1.22 g/cm3 after only one impregnation-pyrolysis cycle was achieved by using hot-pressing curing. The density of the final C/SiC was 2.10 g/cm3 with a porosity of 4.50% and SiC-content of 45.73%. The C/SiC composite had a high thermal conductivity of 48.72 W/(m K) perpendicular to the friction surface and demonstrated good friction and wear properties. The static and average dynamic friction coefficients were 0.68 and 0.32 (at a braking velocity of 28 m/s). The weight wear rates of the rotating disk and stationary disk were respectively 7.71 and 5.60 mg/cycle with linear wear rates, 1.67 and 1.22 μm/cycle, at a braking velocity of 28 m/s.
源语言 | 英语 |
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页(从-至) | 497-503 |
页数 | 7 |
期刊 | Journal of the European Ceramic Society |
卷 | 29 |
期 | 3 |
DOI | |
出版状态 | 已出版 - 2月 2009 |