Frictional properties of self-adaptive chromium doped tungsten-sulfur-carbon coatings at nanoscale
Frictional properties of self-adaptive chromium doped tungsten-sulfur-carbon coatings at nanoscale
Transition metal dichalcogenides (TMD) are excellent dry lubricants forming thin (?10 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 70–99 MPa. Friction coefficient decreased with increased applied load independently of chromium content in the coatings.
381-387
Zekonyte, Jurgita
c40df725-5ce3-4692-b638-bbb4d847b5ea
Cavaleiro, A.
114e42eb-7255-47ef-834d-0546d56d3171
Polcar, T.
c669b663-3ba9-4e7b-9f97-8ef5655ac6d2
2014
Zekonyte, Jurgita
c40df725-5ce3-4692-b638-bbb4d847b5ea
Cavaleiro, A.
114e42eb-7255-47ef-834d-0546d56d3171
Polcar, T.
c669b663-3ba9-4e7b-9f97-8ef5655ac6d2
Zekonyte, Jurgita, Cavaleiro, A. and Polcar, T.
(2014)
Frictional properties of self-adaptive chromium doped tungsten-sulfur-carbon coatings at nanoscale.
Applied Surface Science, 303, .
(doi:10.1016/j.apsusc.2014.03.010).
Abstract
Transition metal dichalcogenides (TMD) are excellent dry lubricants forming thin (?10 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 70–99 MPa. Friction coefficient decreased with increased applied load independently of chromium content in the coatings.
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Published date: 2014
Organisations:
Engineering Science Unit, nCATS Group
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Local EPrints ID: 363092
URI: http://eprints.soton.ac.uk/id/eprint/363092
ISSN: 0169-4332
PURE UUID: 8ad5c7ee-d0f3-4731-b95b-b8549abfd2ef
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Date deposited: 27 Mar 2014 14:45
Last modified: 15 Mar 2024 03:40
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Author:
Jurgita Zekonyte
Author:
A. Cavaleiro
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