Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5359224 | Applied Surface Science | 2014 | 7 Pages |
Abstract
Transition metal dichalcogenides (TMD) are excellent dry lubricants forming thin (â¼10Â nm) tribolayer that simultaneously protects the coating from environmental attack and provides low friction. In this paper, we focus on nanoscale frictional properties of chromium doped tungsten-sulfur-carbon (WSC-Cr) coatings with various Cr content. Friction force microscopy was used to investigate friction force as a function of load. A non-linear contact area dependence on the normal force was observed. The calculated interfacial shear strength was relatively low in the region of 70-99Â MPa. Friction coefficient decreased with increased applied load independently of chromium content in the coatings.
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Authors
J. Zekonyte, A. Cavaleiro, T. Polcar,