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Can W-Se-C coatings be competitive to W-S-C ones?

Evaristo, Manuel, Polcar, Tomas and Cavaleiro, Albano (2009) Can W-Se-C coatings be competitive to W-S-C ones? Plasma Processes and Polymers, 6, (S1), S92-S95. (doi:10.1002/ppap.200930414).

Record type: Article


WSeC coatings were deposited by co-sputtering from WSe2 and C targets. Carbon content varied from 25 up to 70?at.%, Se/W ratio was between 0.9 and 1.0, with no significant influence of the carbon content on their variations. The hardness of the coatings was evaluated by nano-indentation with values between 3.8 and 5.6?GPa. The structure of the coatings analysed by X-ray diffraction in glancing mode could be defined as quasi-amorphous. The tribological properties were evaluated in an SRV machine using reciprocating ball-on-disk tests under increasing loads. In general, the friction gets decreased with increasing loads. The comparison with other transition metals, dichalcogenides alloyed with carbon, namely MoSeC and WSC systems, showed that WSeC coatings could be a good alternative with almost identical friction properties.

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Published date: 2009
Organisations: nCATS Group


Local EPrints ID: 199815
ISSN: 1612-8850
PURE UUID: ee6bf5a4-dc44-431b-935a-41711d84a28c
ORCID for Tomas Polcar: ORCID iD

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Date deposited: 20 Oct 2011 10:37
Last modified: 18 Jul 2017 11:15

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Author: Manuel Evaristo
Author: Tomas Polcar ORCID iD
Author: Albano Cavaleiro

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