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Tribological behavior of mineral and synthetic ester base oil containing MoS2 nanoparticles.
- Source :
-
Journal of Dispersion Science & Technology . 2021, Vol. 42 Issue 4, p493-502. 10p. 2 Color Photographs, 3 Black and White Photographs, 1 Diagram, 2 Charts, 6 Graphs. - Publication Year :
- 2021
-
Abstract
- 0.2, 1.0, and 2.0 wt.% concentration of molybdenum disulfide (MoS2) nanoparticles were dispersed in mineral and synthetic ester base oil. Their tribological behavior investigated using a tribometer with pin-on-disk and four-ball configuration under different conditions of contact pressures, sliding speeds and oil bath temperatures, respectively. The results demonstrate that nano-MoS2 in mineral oil can reduce wear and friction coefficient characteristics at all concentrations tested, especially at 2.0 wt.%. XPS analysis of the worn surfaces indicated that decomposed MoS2 was adsorbed on worn surface, and S and Mo elements of the compound reacted with the metal and existed in the form of sulfide or molybdenum compounds, both of which contributed to the formation of a mix lubricating film. A wear mechanism of MoS2 as antiwear additive is proposed. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 01932691
- Volume :
- 42
- Issue :
- 4
- Database :
- Academic Search Index
- Journal :
- Journal of Dispersion Science & Technology
- Publication Type :
- Academic Journal
- Accession number :
- 148982127
- Full Text :
- https://doi.org/10.1080/01932691.2019.1700132