Influence of humidity on the impact resistance and tribological behaviour of carbon-based composite coatings prepared by a combined PVD/PACVD process

Grossman, Jan; Vyskočil, J.; Novák, R.; Fořt, Tomáš; Vítů, T.; Dupák, Libor; Sobota, Jaroslav

Number of the records: 1

Influence of humidity on the impact resistance and tribological behaviour of carbon-based composite coatings prepared by a combined PVD/PACVD process

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SYSNO ASEP	0336772
Document Type	C - Proceedings Paper (int. conf.)
R&D Document Type	Conference Paper
Title	Influence of humidity on the impact resistance and tribological behaviour of carbon-based composite coatings prepared by a combined PVD/PACVD process
Author(s)	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, SAI} Sobota, Jaroslav (UPT-D)_{RID, ORCID, SAI}
Number of authors	7
Source Title	ICPIG 2009 Conference Proceedings 29th International Conference on Phenomena in Ionized Gases. - Cancún : ICPIG2009 Local Organizing Committee, 2009 / de Urquijo J. - ISBN 978-1-61567-694-1
Pages	pb13-2:1-3
Number of pages	3 s.
Action	International Conference on Phenomena in Ionized Gases (ICPIG) /29./
Event date	12.07.2009-17.07.2009
VEvent location	Cancun
Country	MX - Mexico
Event type	WRD
Language	eng - English
Country	MX - Mexico
Keywords	PVD/PACVD ; Carbon-based coatings
Subject RIV	BL - Plasma and Gas Discharge Physics
R&D Projects	2A-1TP1/031 GA MPO - Ministry of Industry and Trade (MPO)
CEZ	AV0Z20650511 - UPT-D (2005-2011)
Annotation	In this paper, we have measured the influence of humidity on tribological behaviour and impact resistance of carbon-based hard composite coatings deposited by PACVD with an interface magnetron sputtered metallic layer. It is well known, that humidity can significantly influence the tribological behaviour of carbon-based coatings, but unexpectedly, also influence of humidity on impact resistance of this type of film. By increasing the relative humidity from 2.5% to 95%, the value of dynamic impact resistance increases more than four times. Simultaneously the wear rate 0 the coated part increases by more than four orders of magnitude. By optimising components coated by carbon-based coatings exposed to dynamical load, we must take into account not only temperature, roughness of surfaces, and contact pressure but also the influence of the relative humidity at which the component runs.
Workplace	Institute of Scientific Instruments
Contact	Martina Šillerová, sillerova@ISIBrno.Cz, Tel.: 541 514 178
Year of Publishing	2010

Number of the records: 1