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Could humicity affect the mechanical properties of carbon based coatings?
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SYSNO ASEP 0351434 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Could humicity affect the mechanical properties of carbon based coatings? Tvůrce(i) Sobota, Jaroslav (UPT-D) RID, ORCID, SAI
Grossman, Jan (UPT-D) RID
Vyskočil, J. (CZ)
Novák, R. (CZ)
Fořt, Tomáš (UPT-D) RID, ORCID, SAI
Vítů, T. (CZ)
Dupák, Libor (UPT-D) RID, ORCID, SAICelkový počet autorů 7 Zdroj.dok. Chemické listy. - : Česká společnost chemická - ISSN 0009-2770
Roč. 104, č. 15 (2010), s. 375-377Poč.str. 3 s. Jazyk dok. eng - angličtina Země vyd. CZ - Česká republika Klíč. slova carbon ; mechanical properties ; humidity ; fracture toughness of hard thin coatings Vědní obor RIV JI - Kompozitní materiály CEZ AV0Z20650511 - UPT-D (2005-2011) UT WOS 000286413700029 Anotace We evaluated the influence of humidity on tribological behaviour, impact resistance and tribological behaviour at elevated temperatures of carbon-based hard composite coatings deposited by PACVD with an interface metallic layer prepared by unbalanced magnetron sputtering. Impact tests were carried out at a relative humidity of 2.5% and 95% at an impact force of 600 N. Comparing measured values of crater volumes we can see, that the relative humidity substantially influences dynamic resistance of the coating - substrate system, in particular in the region of mechanical erosion of the coating. It is well known for years, that humidity can significantly influence the tribological behaviour of carbon-based coatings. However, humidity also influences the impact resistance of this type of films. By increasing the relative humidity, the value of dynamic impact resistance significantly increases. Simultaneously the wear rate of the coated part increases by many orders of magnitude. Pracoviště Ústav přístrojové techniky Kontakt Martina Šillerová, sillerova@ISIBrno.Cz, Tel.: 541 514 178 Rok sběru 2011
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