Effects of Vanadium Oxide Nanoparticles on Friction and Wear Reduction
- Authors
- Dai, Wei; Lee, Kyungjun; Sinyukov, Alexander M.; Liang, Hong
- Issue Date
- Nov-2017
- Publisher
- ASME
- Keywords
- nanoparticles; lubricant additives; viscosity; lubrication mechanism
- Citation
- JOURNAL OF TRIBOLOGY-TRANSACTIONS OF THE ASME, v.139, no.6
- Journal Title
- JOURNAL OF TRIBOLOGY-TRANSACTIONS OF THE ASME
- Volume
- 139
- Number
- 6
- URI
- https://scholarworks.bwise.kr/gachon/handle/2020.sw.gachon/81279
- DOI
- 10.1115/1.4036449
- ISSN
- 0742-4787
- Abstract
- In this research, rheological and tribological performance of additive V2O5 nanoparticles in a light mineral oil has been investigated. For rheological performance, the addition of 0.2 wt. % V2O5 could reduce the viscosity of the base oil for 6%. Considering the overall friction reduction in boundary, mixed, and hydrodynamic lubrication regimes, that with 0.1 wt. % V2O5 exhibited the best effect. Friction coefficient of base oil could be reduced by 33%. In terms of wear, the addition of 0.2 wt. % V2O5 showed the lowest wear rate, which is 44% reduction compared to base oil. Through Raman spectrum and energy dispersive spectroscopy (EDS) analysis, it was found that V2O5 involved tribochemical reaction during rubbing. Vanadium intermetallic alloy (V-Fe-Cr) was found to enhance the antiwear performance. This research revealed that V2O5 nanoparticles could be an effective additive to improve tribological performance.
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