Tribology Behaviors of LaF₃ Nano Particles in 500SN Base Oil

Abstract:

LaF₃ nanoparticles were used as an additive to improve tribological performance of base oil stock. Their surface modifiers were prepared by a precipitation method, using two kinds of salts from dioctyl-dithiophosphoric acid and piperidine or di-(β-ethoxyl) stearamine. Morphology and structure of LaF₃ nanoparticles were investigated. The tribological behaviors of these solid-containing lubricating oils were measured by using a conventional four-ball machine. Wear scar surfaces on the test steel balls were examined by instrumental analysis to elucidate the anti-wear mechanism.

• Periodical: Applied Mechanics and Materials (Volume 525)
• Pages: 185-190
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.525.185
• Online since: February 2014
• Authors: Hong Guan Wu, Hai Feng Li, Guo Xian Yu*
• Keywords: 500SN Base Oil, LaF₃, Nanoparticle, Surface Modifier, Tribology Behavior

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