Microtribology and friction-induced material transfer in WS2 nanoparticle additives

Carlos Drummond, Norma Alcontar, Jacob Israelachvili, Reshef Tenne, Yuval Golan

Research output: Contribution to journalArticlepeer-review

70 Scopus citations


The tribological behavior of platelet and nested colloidal particles of tungsten disulfide was studied using the surface forces apparatus, atomic force microscopy, lateral force microscopy, and Auger spectroscopy. Shear-induced material transfer from the colloidal particles to the surfaces was shown to be a dominant factor in the tribological behavior observed for both structures. An ultrathin, ordered layer was observed when nested particles were sheared, while WS2 platelets produced a rough and disordered transfer layer, with substantially inferior lubricating properties.

Original languageEnglish
Pages (from-to)348-354
Number of pages7
JournalAdvanced Functional Materials
Issue number5
StatePublished - 1 Oct 2001

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • General Chemistry
  • General Materials Science
  • Electrochemistry
  • Biomaterials


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