Tribology Letters

, Volume 45, Issue 1, pp 131–141

Real Time TEM Imaging of Compression and Shear of Single Fullerene-Like MoS2 Nanoparticle

  • Imène Lahouij
  • Fabrice Dassenoy
  • Béatrice Vacher
  • Jean-Michel Martin
Original Paper

DOI: 10.1007/s11249-011-9873-8

Cite this article as:
Lahouij, I., Dassenoy, F., Vacher, B. et al. Tribol Lett (2012) 45: 131. doi:10.1007/s11249-011-9873-8

Abstract

The deformation and degradation behavior of single inorganic fullerenes nanoparticles of MoS2 under compression and shear has been observed in real time using a high-resolution transmission electron microscope equipped with a nanoindentation holder. The MoS2 nanoparticles were compressed using a nanoindenter and a truncated diamond tip. For the first time, real time imaging of the deformation of individual nanoparticles clearly shows first orientation changes in the particle shape during loading process followed by a large deformation and the exfoliation of the outer sheets of the fullerene nested structure. Exfoliation was observed for a contact pressure estimated at 1 GPa. Additional sliding tests performed with the nanoindenter gave evidence for a rolling process for lower contact pressures up to 100 MPa.

Keywords

IF-MoS2 nanoparticlesIn situ HRTEMNanoindentationFM/AW additivesBoundary lubrication

Copyright information

© Springer Science+Business Media, LLC 2011

Authors and Affiliations

  • Imène Lahouij
    • 1
  • Fabrice Dassenoy
    • 1
  • Béatrice Vacher
    • 1
  • Jean-Michel Martin
    • 1
  1. 1.LTDS—ECL EcullyEcullyFrance