Structure, mechanical and tribological properties of self-lubricant W-S-N coatings

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21230%2F15%3A00224510" target="_blank" >RIV/68407700:21230/15:00224510 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1016/j.surfcoat.2014.11.074" target="_blank" >http://dx.doi.org/10.1016/j.surfcoat.2014.11.074</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.surfcoat.2014.11.074" target="_blank" >10.1016/j.surfcoat.2014.11.074</a>

Result language
angličtina
Original language name
Structure, mechanical and tribological properties of self-lubricant W-S-N coatings
Original language description
W-S-N self-lubricant coatings were deposited by d.c. reactive magnetron sputtering at two total discharge pressures of 0.6 and 1.2 Pa. The nitrogen content and S/W ratio varied from 0 to 30 at.%, and 0.6 to 1.6, respectively. The effect of deposition conditions on chemical composition, structure and mechanical properties was studied; coatings with the most promising properties have been selected for tribological testing. Coatings were nanostructured with nanograins of tungsten disulfide; the size of which decreased with increasing nitrogen content. Hardness increased with N content up to 7 GPa for coating deposited with a discharge pressure of 1.2 Pa; coatings deposited at lower pressure exhibited hardness around 9 GPa. Friction and wear behavior in humid air and dry nitrogen was evaluated using a pin-on-disk tribometer. The wear tracks and the ball wear scars were analyzed by Raman spectroscopy and scanning electron microscopy. Although the friction coefficient in dry nitrogen was sig
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
S - Specificky vyzkum na vysokych skolach

Publication year
2015
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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