TY - JOUR
T1 - Effects of trace moisture content on tribofilm formation, friction and wear of CF-filled PTFE in hydrogen
AU - Chen, Qian
AU - Morita, Takehiro
AU - Sawae, Yoshinori
AU - Fukuda, Kanao
AU - Sugimura, Joichi
N1 - Publisher Copyright:
© 2023 Elsevier Ltd
PY - 2023/10
Y1 - 2023/10
N2 - This study investigated the effects of trace moisture in hydrogen gas on the tribological behavior of carbon fiber (CF)-filled polytetrafluoroethylene (PTFE) composites by examining 20 wt% polyacrylonitrile-based CF-reinforced PTFE composites against stainless-steel disks in gaseous hydrogen environments, where moisture content was controlled at 1, 10, 20, and 40 ppm. The results revealed tribological characteristics of the sliding couples were significantly affected by the moisture content. Wear rates of pin specimens tended to increase gradually with moisture content. Similarly, average coefficient of friction increased as moisture content increased from 1 to 20 ppm. However, it decreased upon further increasing the water content. Moreover, surface analyses of the formed tribofilms at varying moisture contents revealed significant variations in terms of the amount and structure.
AB - This study investigated the effects of trace moisture in hydrogen gas on the tribological behavior of carbon fiber (CF)-filled polytetrafluoroethylene (PTFE) composites by examining 20 wt% polyacrylonitrile-based CF-reinforced PTFE composites against stainless-steel disks in gaseous hydrogen environments, where moisture content was controlled at 1, 10, 20, and 40 ppm. The results revealed tribological characteristics of the sliding couples were significantly affected by the moisture content. Wear rates of pin specimens tended to increase gradually with moisture content. Similarly, average coefficient of friction increased as moisture content increased from 1 to 20 ppm. However, it decreased upon further increasing the water content. Moreover, surface analyses of the formed tribofilms at varying moisture contents revealed significant variations in terms of the amount and structure.
UR - http://www.scopus.com/inward/record.url?scp=85168839244&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85168839244&partnerID=8YFLogxK
U2 - 10.1016/j.triboint.2023.108905
DO - 10.1016/j.triboint.2023.108905
M3 - Article
AN - SCOPUS:85168839244
SN - 0301-679X
VL - 188
JO - Tribology International
JF - Tribology International
M1 - 108905
ER -