Tribological behaviour of W-alloyed carbon-based coatings in dry and lubricated sliding contact

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21230%2F14%3A00225599" target="_blank" >RIV/68407700:21230/14:00225599 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1002/ls.1259" target="_blank" >http://dx.doi.org/10.1002/ls.1259</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1002/ls.1259" target="_blank" >10.1002/ls.1259</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Tribological behaviour of W-alloyed carbon-based coatings in dry and lubricated sliding contact

Popis výsledku v původním jazyce

Carbon-based coatings with different W contents were deposited by direct current magnetron sputtering in reactive and non-reactive atmospheres. All deposited coatings have compact morphologies with amorphous (tungsten-free) or nanocrystalline structures(tungsten-doped). The latter one was indicated by very broad peaks in X-ray Diffraction spectra in the position of tungsten carbide suggesting W-carbide nanoparticles embedded in an amorphous carbon matrix. The hardness increased from 10 to 15 GPa with increasing W content. The coatings were tribological tested at dry and lubricated conditions with increasing temperature in a coating/steel configuration. In dry sliding, the friction coefficient increases with the increase of the temperature reaching values higher than 1.0. The friction is significantly lower in lubricated contact using three different oils: poly-alpha-olefin, paraffin and olive oil. The olive oil shows promising lubricating properties at the temperature lower than 70 de

Název v anglickém jazyce

Tribological behaviour of W-alloyed carbon-based coatings in dry and lubricated sliding contact

Popis výsledku anglicky

Carbon-based coatings with different W contents were deposited by direct current magnetron sputtering in reactive and non-reactive atmospheres. All deposited coatings have compact morphologies with amorphous (tungsten-free) or nanocrystalline structures(tungsten-doped). The latter one was indicated by very broad peaks in X-ray Diffraction spectra in the position of tungsten carbide suggesting W-carbide nanoparticles embedded in an amorphous carbon matrix. The hardness increased from 10 to 15 GPa with increasing W content. The coatings were tribological tested at dry and lubricated conditions with increasing temperature in a coating/steel configuration. In dry sliding, the friction coefficient increases with the increase of the temperature reaching values higher than 1.0. The friction is significantly lower in lubricated contact using three different oils: poly-alpha-olefin, paraffin and olive oil. The olive oil shows promising lubricating properties at the temperature lower than 70 de

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

JI - Kompositní materiály

OECD FORD obor

—

Projekt

<a href="/cs/project/GAP108%2F10%2F1782" target="_blank" >GAP108/10/1782: Stabilita bioaktivních vrstevnatých struktur v modelových tělních tekutinách.</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2014

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Lubrication Science

ISSN

0954-0075

e-ISSN

—

Svazek periodika

26

Číslo periodika v rámci svazku

6

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

12

Strana od-do

428-439

Kód UT WoS článku

000342983900003

EID výsledku v databázi Scopus

—