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Microtribology and Friction‐Induced Material Transfer in WS 2 Nanoparticle Additives
Author(s) -
Drummond C.,
Alcantar N.,
Israelachvili J.,
Tenne R.,
Golan Y.
Publication year - 2001
Publication title -
advanced functional materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 6.069
H-Index - 322
eISSN - 1616-3028
pISSN - 1616-301X
DOI - 10.1002/1616-3028(200110)11:5<348::aid-adfm348>3.0.co;2-s
Subject(s) - materials science , tungsten disulfide , tribology , nanoparticle , colloid , particle (ecology) , layer (electronics) , atomic force microscopy , composite material , tungsten , nanotechnology , chemical engineering , metallurgy , oceanography , geology , engineering
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 WS 2 platelets produced a rough and disordered transfer layer, with substantially inferior lubricating properties.