3DN C/SiC-MoS2 self-lubricating composites with high friction stability and excellent elevated-temperature lubrication

Yubo Yang, Yu Zhao, Hui Mei, Laifei Cheng, Litong Zhang

科研成果: 期刊稿件文章同行评审

19 引用 (Scopus)

摘要

Aerospace lubrication system requires materials with stable service life and excellent elevated-temperature lubrication performance. Herein, MoS2 lubricants were used to fill the pores of three-dimensional needled (3DN) C/SiC to prepare 3DN/SiC-MoS2 self-lubricating composites. The effects of 3DN C/SiC-MoS2 self-lubricating composites under different friction time and temperatures were investigated. Results reveals that the average friction coefficients of 3DN C/SiC-MoS2 self-lubricating sample fluctuated between 0.118 and 0.202 under different friction time, and the wear rate maintained about 10−4 mm3/(N m). Especially, the sample under the long friction time of 7200s, with average friction coefficient of 0.161 and lowest wear rate of 3.57×10-5 mm3/(N m), indicating that the self-lubricating sample has a stable service life. Additionally, the average friction coefficients of 3DN C/SiC-MoS2 self-lubricating sample at 200℃ and 400℃ were lower than that of at 25℃, and the wear rate increased within the order of 10-4 mm3/(N m) as the temperature increased.

源语言英语
页(从-至)6815-6823
页数9
期刊Journal of the European Ceramic Society
41
14
DOI
出版状态已出版 - 11月 2021

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