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Preparation and tribological properties of Bi nanoparticles as a lithium grease additive

XIAOMIN ZHANG1,* , ZHENZHONG ZHANG1, FANGXIA ZHAO1, TAI QIU1

Affiliation

  1. College of Materials Science and Engineering, Nanjing University of Technology, Nanjing 210009, China

Abstract

To impr ove the wear resistance of the machine parts, strengthened brush plating coatings were prepared by deposition of Bi nanoparticles. The excellent Bi nanoparticles self repairing additives were prepared via the DC arc plasma evaporation method. The tribologi cal properties of lithium lubricating greases containing Bi nanoparticles were investigated with a four ball machine, and the morphology , self repairing mechanism and the elemental composition of worn steel surfaces were analyzed by the scanning electron m icroscope ( and the energy disperse spectroscopy ( EDS). Results show that as prepared Bi nanoparticles as lubricant additives can significantly improve the tribological properties of lithium lubricating greases as well as load carrying capacity ..

Keywords

Lubrication additive, Tribological properties, Bi nanoparticles.

Citation

XIAOMIN ZHANG, ZHENZHONG ZHANG, FANGXIA ZHAO, TAI QIU, Preparation and tribological properties of Bi nanoparticles as a lithium grease additive, Optoelectronics and Advanced Materials - Rapid Communications, 8, 5-6, May-June 2014, pp.500-505 (2014).

Submitted at: Oct. 25, 2013

Accepted at: May 15, 2014