Journal of Inorganic Materials ›› 2011, Vol. 26 ›› Issue (6): 643-648.DOI: 10.3724/SP.J.1077.2011.00643

• Research Paper • Previous Articles     Next Articles

Comparative Study on Tribological Behavior of Sb2S3 Nano-bundles and Nano-particles in Liquid Paraffin

ZHANG Ling1,2, CHEN Jian-Min1, CHEN Lei1, WAN Hong-Qi1, ZHOU Hui-Di1   

  1. (1. Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China; 2. Graduate School of Chinese Academy of Sciences, Beijing 100049, China)
  • Received:2010-08-14 Revised:2010-10-19 Published:2011-06-20 Online:2011-06-07
  • Supported by:

    National Basic Research Program (2007CB607601); Innovative Research Group Foundation from NSFC(50421502)

Abstract: The tribological properties of Sb2S3 nano-bundles as an additive in liquid paraffin were evaluated on a four-ball tester, thereafter the performance of Sb2S3 nano-bundles was compared with that of Sb2S3 nano-particles. The comparative analyses of friction coefficients, wear scar diameters and morphology of worn surfaces show that Sb2S3 nano-bundles and nano-particles can both improve tribological properties of base oil, Sb2S3 nano-bundles exhibit better friction reduction and anti-wear properties than Sb2S3 nano-particles at relative low load, and they possess very similar tribological performance at relative high load. As far as the load carrying ability is concerned, the performance of nano-particles is obviously better than nano-bundles. It is inferred that the sliding-rolling friction transition emerges when lubricated with nano-bundles/oil mixture at low load, which contributes to the good lubricating effect of the nano-bundles.

Key words: Sb2S3, morphology, lubricating additive, tribological properties

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