Microstructure and frictional properties of 3D needled C/SiC brake materials modified with graphite

Jian Xin Zhang, Shang Wu Fan, Li Tong Zhang, Lai Fei Cheng, Shang Jie Yang, Guang Lai Tian

科研成果: 期刊稿件文章同行评审

22 引用 (Scopus)

摘要

The 3D needled C/SiC brake materials modified with graphite were prepared by a combined process of the chemical vapor infiltration, slurry infiltration and liquid silicon infiltration process. The microstructure and frictional properties of the brake materials were investigated. The density and open porosity of the materials as-received were about (2.1±0.1) g/cm 3 and (5±1), respectively. The brake materials were composed of 59 C, 39 SiC, and 2 Si (mass fraction). The content of Si in the C/SiC brake materials modified with graphite was far less than that in the C/SiC brake materials without being modified with graphite, and the Si was dispersed. The braking curve of the 3D needled C/SiC modified with graphite was smooth, which can ensure the smooth and comfortable braking. The frictional properties under wet condition of the 3D needled C/SiC modified with graphite showed no fading. And the linear wear rate of the C/SiC modified with graphite was lower than that of the C/SiC unmodified.

源语言英语
页(从-至)2289-2293
页数5
期刊Transactions of Nonferrous Metals Society of China (English Edition)
20
12
DOI
出版状态已出版 - 12月 2010

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