Tribological properties of oleic acid-modified graphene as lubricant oil additives

Liquid phase exfoliated graphene sheets were modified by oleic acid and dispersed in lubricant oils as additives. The tribological behaviours of graphene-contained oils were investigated using a four-ball tribometer. The lubricant with optimized graphene concentrations of 0.02–0.06 wt% showed enhanc...

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Bibliographic Details
Published in:Journal of physics. D, Applied physics Applied physics, 2011-05, Vol.44 (20), p.205303
Main Authors: Zhang, Wei, Zhou, Ming, Zhu, Hongwei, Tian, Yu, Wang, Kunlin, Wei, Jinquan, Ji, Fei, Li, Xiao, Li, Zhen, Zhang, Peng, Wu, Dehai
Format: Article
Language:English
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Summary:Liquid phase exfoliated graphene sheets were modified by oleic acid and dispersed in lubricant oils as additives. The tribological behaviours of graphene-contained oils were investigated using a four-ball tribometer. The lubricant with optimized graphene concentrations of 0.02–0.06 wt% showed enhanced friction and anti-wear performance, with friction coefficient and wear scar diameter reduced by 17% and 14%, respectively.
ISSN:0022-3727
1361-6463
DOI:10.1088/0022-3727/44/20/205303