TY - JOUR
T1 - 3DN C/SiC-MoS2 self-lubricating composites with high friction stability and excellent elevated-temperature lubrication
AU - Yang, Yubo
AU - Zhao, Yu
AU - Mei, Hui
AU - Cheng, Laifei
AU - Zhang, Litong
N1 - Publisher Copyright:
© 2021 Elsevier Ltd
PY - 2021/11
Y1 - 2021/11
N2 - 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.
AB - 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.
KW - 3DN C/SiC
KW - Elevated temperature
KW - Lubrication performance
KW - MoS
KW - Self-lubricating composites
UR - http://www.scopus.com/inward/record.url?scp=85111335597&partnerID=8YFLogxK
U2 - 10.1016/j.jeurceramsoc.2021.07.030
DO - 10.1016/j.jeurceramsoc.2021.07.030
M3 - 文章
AN - SCOPUS:85111335597
SN - 0955-2219
VL - 41
SP - 6815
EP - 6823
JO - Journal of the European Ceramic Society
JF - Journal of the European Ceramic Society
IS - 14
ER -