Ultra-low friction W-S-N solid lubricant coating

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21230%2F13%3A00206619" target="_blank" >RIV/68407700:21230/13:00206619 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1016/j.surfcoat.2013.06.026" target="_blank" >http://dx.doi.org/10.1016/j.surfcoat.2013.06.026</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.surfcoat.2013.06.026" target="_blank" >10.1016/j.surfcoat.2013.06.026</a>

Result language
angličtina
Original language name
Ultra-low friction W-S-N solid lubricant coating
Original language description
W-S-N films were deposited by reactive magnetron sputtering from WS2 target in Ar/N2 atmosphere. Besides the standard evaluation of composition, structure, morphology, hardness and cohesion/adhesion, the core objective of this paper was to analyze coating tribological behavior. The chemical composition was 34 at.% N, 12 at.% O, 29 at.% W and 25 at.% S, and the as-deposited films were completely amorphous. The film thickness was 2.3 ?m, including the approximately 300-nm thick adhesion improving titaniuminterlayer. The friction coefficient was lower than 0.003 when sliding in dry nitrogen. The coating showed remarkable wear resistance surviving more than 2 million laps on pin-on-dics. The excellent friction properties were attributed to the formation of a thin tungsten disulfide tribofilm on the top of the wear track of the coating and on the counterpart surface. Moreover, the coating showed ability to replenish damaged areas with solid lubricant. We demonstrated that a structural tran
Czech name
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Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
JI - Composite materials
OECD FORD branch
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Project
<a href="/en/project/GAP108%2F10%2F0218" target="_blank" >GAP108/10/0218: Advanced self-adaptive low friction coatings based on transition metal dichalcogenides alloyed with carbon</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2013
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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