Tribology Letters

, Volume 18, Issue 4, pp 477–485

Ultralow-friction and wear properties of IF-WS2 under boundary lubrication

  • L. Joly-Pottuz
  • F. Dassenoy
  • M. Belin
  • B. Vacher
  • J.M. Martin
  • N. Fleischer
Article

Tested in boundary lubrication, inorganic fullerene-like WS2 nanoparticles used as additives in oil present interesting friction reducing and anti-wear properties. A dispersion with only 1 wt% of particles leads, from a contact pressure of 0.83 GPa, to a drastic decrease of the friction coefficient below 0.04 and to very low wear. High resolution transmission electron microscopy (HRTEM), Scanning Electron Microscopy (SEM), X-ray diffraction (XRD), Raman Spectroscopy and video imaging were used to explain the lubrication mechanisms. A structural modification of fullerene-like nanoparticles into sheets during the friction test was evidenced to be the main effect at the origin of these properties.

Key words

inorganic fullerene-like WS2 nanoparticles boundary lubrication friction tribology Raman spectroscopy X-ray diffraction transmission electron microscopy video-imaging 

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Copyright information

© Springer Science+Business Media, Inc. 2005

Authors and Affiliations

  • L. Joly-Pottuz
    • 1
  • F. Dassenoy
    • 1
  • M. Belin
    • 1
  • B. Vacher
    • 1
  • J.M. Martin
    • 1
  • N. Fleischer
    • 2
  1. 1.Ecole Centrale de Lyon, LTDSFrance
  2. 2.NanoMaterials, LtdIsrael

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