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Is graphene formed on WC surface under glycerol lubrication? Yes
Author(s) -
Chen Qi,
Zhang Renhui,
He Zhongyi,
Xiong Liping,
Wang Qing
Publication year - 2020
Publication title -
surface and interface analysis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.52
H-Index - 90
eISSN - 1096-9918
pISSN - 0142-2421
DOI - 10.1002/sia.6806
Subject(s) - lubricity , lubrication , graphene , glycerol , materials science , composite material , ball (mathematics) , chemical engineering , nanotechnology , chemistry , organic chemistry , mathematics , engineering , mathematical analysis
Recently, most of the researchers focused on investigating the superlubricity of glycerol or glycerin/water solutions, yet all of them have no attempt to follow with performance about their lubricity under high load and fast rotational speed. In this article, the lubricity of glycerol was systematically investigated under 98 N and 1,450 rpm using a four‐ball wear machine. Interestingly, results showed that friction‐induced graphene layers were first discovered during sliding, meanwhile, friction‐induced graphene layers were closely related to the high flush temperature rise and catalysts. The synergy of graphene and glycerol elastohydrodynamic film on wear scar played an important role in obtaining low friction and wear‐less.