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Study on the Lubricating Characteristics of Graphene Lubricants
- Source :
- Lubricants, Vol 11, Iss 12, p 506 (2023)
- Publication Year :
- 2023
- Publisher :
- MDPI AG, 2023.
-
Abstract
- Graphene is considered a good lubricant additive. The lubricating properties of graphene lubricant at different concentrations and temperatures are studied via a four-ball friction and wear-testing machine. The results show that the coefficient of friction (COF) and wear scar diameter (WSD) of the steel ball with 0.035 wt% graphene lubricant decreased by 40.8% and 50.4%, respectively. Finally, through surface analysis, the following lubrication mechanism is proposed: as the added graphene particles can easily fill and cover the pores of the friction surface, the contact pressure of the rough peak is reduced, resulting in a lower COF and smoother surface. Although the COF increases with temperature, graphene lubricants still exhibit good lubrication effects.
Details
- Language :
- English
- ISSN :
- 20754442
- Volume :
- 11
- Issue :
- 12
- Database :
- Directory of Open Access Journals
- Journal :
- Lubricants
- Publication Type :
- Academic Journal
- Accession number :
- edsdoj.2288d25c9ea4927bcefadfbea9652d4
- Document Type :
- article
- Full Text :
- https://doi.org/10.3390/lubricants11120506