Tribological properties of Mo-S-I nanowires as additive in oil

Lucile Joly-Pottuz, F. Dassenoy, J. M. Martin, D. Vrbanic, A. Mrzel, D. Mihailovic, W. Vogel, G. Montagnac

Research output: Contribution to journalArticlepeer-review

45 Citations (Scopus)

Abstract

A new nanowire-like material with the chemical formula Mo6 S4.5I4.5 was studied as additive in a synthetic base oil, a polyalphaolefin (PAO). This material presents interesting friction reducing properties, with friction coefficients reaching a value of 0.04 in boundary lubrication. Transmission and scanning electron microscopy, X-ray diffraction, Raman spectroscopy and X-ray photoelectron spectroscopy were used to characterise nanowires before and after friction. The combination of these techniques gave evidence of MoS2 formation in the contact area during friction tests. This structural evolution of nanowires explains their good friction reducing properties.

Original languageEnglish
Pages (from-to)385-393
Number of pages9
JournalTribology Letters
Volume18
Issue number3
DOIs
Publication statusPublished - 2005 Mar 1
Externally publishedYes

Keywords

  • Boundary lubrication
  • Friction
  • Mo-S-I nanowires
  • Raman spectroscopy
  • Transmission electron microscopy
  • Tribology
  • X-ray diffraction

ASJC Scopus subject areas

  • Mechanics of Materials
  • Mechanical Engineering
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films

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