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.
Effects of Vanadium Oxide Nanoparticles on Friction and Wear Reduction
Contributed by the Tribology Division of ASME for publication in the JOURNAL OF TRIBOLOGY. Manuscript received December 24, 2016; final manuscript received March 21, 2017; published online July 10, 2017. Assoc. Editor: Min Zou.
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Dai, W., Lee, K., Sinyukov, A. M., and Liang, H. (July 10, 2017). "Effects of Vanadium Oxide Nanoparticles on Friction and Wear Reduction." ASME. J. Tribol. November 2017; 139(6): 061607. https://doi.org/10.1115/1.4036449
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