Coefficient of friction and wear of sputtered a-C thin coatings containing Mo

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F49777513%3A23520%2F10%3A00503634" target="_blank" >RIV/49777513:23520/10:00503634 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68378271:_____/10:00438619

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Coefficient of friction and wear of sputtered a-C thin coatings containing Mo

Popis výsledku v původním jazyce

The paper reports on preparation of ~3000 nm thick a-C coatings containing Mo, interrelationships between their mechanical properties, a coefficient of friction and wear rate and the effect of Mo content in the a-C coating on these interrelationships. The Mo-C coatings were prepared by sputtering using an unbalanced magnetron (UM) equipped with a graphite targets (diameter 100 mm, 99.9 % purity) fixed to the UM cathode with Mo ring of different inner diameter. The content of Mo in the a-C coating was controlled by inner diameter of Mo ring. It is shown that coefficient of friction and wear rate of the coating strongly depend not only on its hardness H but also on its effective Young's modulus E*, the ratios H/E*, H^3/E*^2 and the elastic recovery. Theratio H^3/E*^2 characterizes the resistance of coating to plastic deformation. Coatings with a low amount of Mo composed of nanograins of carbides dispersed in a-C matrix exhibit low values of coefficient of friction 0.07 and wear rate 10

Název v anglickém jazyce

Coefficient of friction and wear of sputtered a-C thin coatings containing Mo

Popis výsledku anglicky

The paper reports on preparation of ~3000 nm thick a-C coatings containing Mo, interrelationships between their mechanical properties, a coefficient of friction and wear rate and the effect of Mo content in the a-C coating on these interrelationships. The Mo-C coatings were prepared by sputtering using an unbalanced magnetron (UM) equipped with a graphite targets (diameter 100 mm, 99.9 % purity) fixed to the UM cathode with Mo ring of different inner diameter. The content of Mo in the a-C coating was controlled by inner diameter of Mo ring. It is shown that coefficient of friction and wear rate of the coating strongly depend not only on its hardness H but also on its effective Young's modulus E*, the ratios H/E*, H^3/E*^2 and the elastic recovery. Theratio H^3/E*^2 characterizes the resistance of coating to plastic deformation. Coatings with a low amount of Mo composed of nanograins of carbides dispersed in a-C matrix exhibit low values of coefficient of friction 0.07 and wear rate 10

Druh

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

CEP obor

BL - Fyzika plasmatu a výboje v plynech

OECD FORD obor

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Projekt

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Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2010

Kód důvěrnosti údajů

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

Název periodika

Surface and Coatings Technology

ISSN

0257-8972

e-ISSN

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Svazek periodika

205

Číslo periodika v rámci svazku

5

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

5

Strana od-do

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Kód UT WoS článku

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EID výsledku v databázi Scopus

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