| Effect of infiltrating Si on friction properties of C/C composites |
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| 作者姓名： | MA Yun-zhu |
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| 作者单位： | State Key Laboratory for Powder Metallurgy，Central South University，Changsha 410083，China，State Key Laboratory for Powder Metallurgy，Central South University，Changsha 410083，China，State Key Laboratory for Powder Metallurgy，Central South University，Changsha 410083，China，State Key Laboratory for Powder Metallurgy，Central South University，Changsha 410083，China，State Key Laboratory for Powder Metallurgy，Central South University，Changsha 410083，China，State Key Laboratory for Powder Metallurgy，Central South University，Changsha 410083，China，State Key Laboratory for Powder Metallurgy，Central South University，Changsha 410083，China |
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| 基金项目： | Project [1998(1817)] supported by the National High-Technology for Industrial Development of China |
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| 摘 要： | In order to improve the friction-wear properties of the C/C composites for aircraft brake pairs, the friction behavior of samples with infiltrating Si was investigated. The influence of Si smearing thickness on friction properties was studied in detail. The results show that with the increase of Si smearing thickness and β-SiC content, the friction coefficient reduces from 0. 40 to 0. 30; the linear wear of stators increases from 2. 0 μm to 18. 9 μm per cycle, and that of rotors increases from 1. 4μm to 22. 6 μm per cycle; mass wear of stators increases from 20. 6 mg to 126. 9 mg per cycle, and that of rotors increases from 13. 7 mg to 166. 2 mg per cycle. On the other hand, when a large number of inhomogeneous β-SiC particulates are performed, friction surfaces of the samples flake off layer by layer and many nicks are observed.
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| 收稿时间： | 22 February 2003 |
| 修稿时间： | 12 June 2003 |
Effect of infiltrating Si on friction properties of C/C composites |
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| Ma Yun-zhu , Huang Bai-yun , Xiong Xiang , Xiao Peng , Li Jiang-hong , Huang Qi-zhong and Yi Mao-zhong.Effect of infiltrating Si on friction properties of C/C composites[J].Journal of Central South University of Technology,2003,10(3):173-176. |
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| Authors: | Ma Yun-zhu Huang Bai-yun Xiong Xiang Xiao Peng Li Jiang-hong Huang Qi-zhong and Yi Mao-zhong |
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| Affiliation: | (1) State Key Laboratory for Powder Metallurgy, Central South University, 410083 Changsha, China |
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| Abstract: | In order to improve the friction-wear properties of the C/C composites for aircraft brake pairs, the friction behavior of
samples with infiltrating Si was investigated. The influence of Si smearing thickness on friction properties was studied in
detail. The results show that with the increase of Si smearing thickness and β-SiC content, the friction coefficient reduces
from 0.40 to 0.30; the linear wear of stators from 2.0 μm to 18.9 μm per cycle, and that of rotors increases from 1.4 μm to
22.6 μm per cycle; mass wear of stators increases from 20.6 mg to 126.9 mg per cycle, and that of rotors increases from 13.7
mg to 166.2 mg per cycle. On the other hand, when a large number of inhomogeneous β-SiC particulates are performed, friction
surfaces of the samples flake off layer by layer and many nicks are observed.
Foundation item: Project 1998(1817)] supported by the National High-Technology for Industrial Development of China |
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| Keywords: | C/C composites infiltrating Si modifying property friction mechanism |
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