Vacuum Tribological Properties of W-S-N Coatings Synthesized by Direct Current Magnetron Sputtering

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21230%2F22%3A00364897" target="_blank" >RIV/68407700:21230/22:00364897 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.3390/coatings12111646" target="_blank" >https://doi.org/10.3390/coatings12111646</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.3390/coatings12111646" target="_blank" >10.3390/coatings12111646</a>

Result language
angličtina
Original language name
Vacuum Tribological Properties of W-S-N Coatings Synthesized by Direct Current Magnetron Sputtering
Original language description
This work deals with the investigation of the tribological performance of DC magnetron sputtered W-S-N coatings under vacuum atmosphere, as part of the exploration of multi-environment sliding properties of W-S-N solid lubricants. This study is part of the systematic testing of W-S-N solid lubricants in different environments, especially vacuum, which is often ignored. The trend is to test sliding properties in dry N-2 by considering it as replacement of vacuum environment testing. This approach is not appropriate. In this work, a set of coatings was synthesized with N-alloying content in the range of 0-25.5 at.%. A maximum S/W ratio of 1.47 was observed for the pure WSx coating. A maximum hardness of 8.0 GPa was observed for 23 at.% of N-alloying. The coating with the lowest N content (14.6 at.%) displayed the lowest friction, specific wear rate and wear scar depth under vacuum conditions. Despite superior sliding performance at room temperature (35% humidity), 200 degrees C and dry nitrogen conditions, the performance of the WSN12.5 coating deteriorated vacuum environment.
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
20505 - Composites (including laminates, reinforced plastics, cermets, combined natural and synthetic fibre fabrics; filled composites)

Project
<a href="/en/project/EF20_079%2F0017983" target="_blank" >EF20_079/0017983: Mobility CTU MSCA-IF-IV-v-79</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2022
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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