Preparation of C/C-SiC Brake Materials with Low Cost and High Friction Performance

Preparation of C/C-SiC Brake Materials with Low Cost and High Friction Performance
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低成本高摩擦性能C/C-SiC制动材料的制备

DOI:
10.4028/www.scientific.net/msf.620-622.421
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发表时间:
2009-04
期刊:
Materials Science Forum
影响因子:
--
通讯作者:
Zhihao Jin
Zhihao Jin
中科院分区:
其他
文献类型:
--
作者:
Yonghui Zhang;Zhichao Xiao;Jiping Wang;Jianfeng Yang;Zhihao Jin

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采用改进的化学液体汽化渗透(CLVI)与液态硅渗透(LSI)工艺相结合的方法制备C/C- sic制动材料,制备时间不超过30小时。研究了材料的显微组织和摩擦性能。C/C- sic制动材料的密度和孔隙率分别为2.05 g/cm3和4.8%。材料的平均动摩擦系数约为0.36,摩擦系数稳定。旋转盘和静止盘的平均线性磨损率小于4.7µm cycle-1。基体成分和显微组织使其具有良好的摩擦性能。
C/C-SiC brake materials were prepared by improved chemical liquid vaporized infiltration (CLVI) combined with liquid silicon infiltration (LSI) process, which needed less than thirty hours. The microstructure and frictional properties of the material were investigated. The density and porosity of the C/C-SiC brake material were 2.05 g/cm3 and 4.8%, respectively. The average dynamic friction coefficient of the materials was about 0.36, and the friction coefficient was stable. The average linear wear rate was less than 4.7 µm cycle-1 for rotating and stationary disk. The matrix composition and microstructure resulted in the high frictional performances.