About: Influence of Ag content on mechanical and tribological behavior of DLC coatings

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Ag-DLC coatings with Ag contents ranging from 1.3. at.% to 13.1. at.% were deposited by DC magnetron sputtering. The coatings were characterized with respect to their structure (by means of XRD and Raman spectroscopy), mechanical and tribological properties (by scratch test, nanoindentation, residual stress measurements and pin-on-disk test). The incorporation of 13.1. at.% Ag resulted in the formation of Ag grains of 2-3. nm which promoted the increase of graphite like bonds organized in rings. Regarding the mechanical properties, no variations were found for films with Ag contents lower than 13. at.%; a reduction of both hardness and compressive residual stress was then observed for higher values. Pin-on-disk tests were performed at two different contact pressures (690. MPa and 1180. MPa) in dry sliding conditions against a zirconia counterpart. For the lower contact pressure the variations in the wear rate are well correlated with the coating structure and mechanical properties, while for the higher contact pressure the presence of Ag is relevant and Ag-DLC coatings are showing higher wear rate than DLC one. SEM analysis revealed the formation of Ag aggregates on the wear track and adhesion of silver to the counterpart. Ag-DLC coatings with Ag contents ranging from 1.3. at.% to 13.1. at.% were deposited by DC magnetron sputtering. The coatings were characterized with respect to their structure (by means of XRD and Raman spectroscopy), mechanical and tribological properties (by scratch test, nanoindentation, residual stress measurements and pin-on-disk test). The incorporation of 13.1. at.% Ag resulted in the formation of Ag grains of 2-3. nm which promoted the increase of graphite like bonds organized in rings. Regarding the mechanical properties, no variations were found for films with Ag contents lower than 13. at.%; a reduction of both hardness and compressive residual stress was then observed for higher values. Pin-on-disk tests were performed at two different contact pressures (690. MPa and 1180. MPa) in dry sliding conditions against a zirconia counterpart. For the lower contact pressure the variations in the wear rate are well correlated with the coating structure and mechanical properties, while for the higher contact pressure the presence of Ag is relevant and Ag-DLC coatings are showing higher wear rate than DLC one. SEM analysis revealed the formation of Ag aggregates on the wear track and adhesion of silver to the counterpart. (en)
Title	Influence of Ag content on mechanical and tribological behavior of DLC coatings Influence of Ag content on mechanical and tribological behavior of DLC coatings (en)
skos:prefLabel	Influence of Ag content on mechanical and tribological behavior of DLC coatings Influence of Ag content on mechanical and tribological behavior of DLC coatings (en)
skos:notation	RIV/68407700:21230/13:00206620!RIV14-GA0-21230___
http://linked.open...avai/predkladatel	Fakulta elektrotechnická
http://linked.open...avai/riv/aktivita	P
http://linked.open...avai/riv/aktivity	P(GAP108/10/1782)
http://linked.open...iv/cisloPeriodika	October
http://linked.open...vai/riv/dodaniDat	2014
http://linked.open...aciTvurceVysledku	Polcar, Tomáš
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	České vysoké učení technické v Praze / Fakulta elektrotechnická
http://linked.open...dnocenehoVysledku	79657
http://linked.open...ai/riv/idVysledku	RIV/68407700:21230/13:00206620
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	Ag-DLC; Structure; Mechanical properties; Tribology; Wear mechanisms (en)
http://linked.open.../riv/klicoveSlovo	Mechanical properties Ag-DLC Structure Tribology Wear mechanisms
http://linked.open...odStatuVydavatele	NL - Nizozemsko
http://linked.open...ontrolniKodProRIV	[3BB2872C1239]
http://linked.open...i/riv/nazevZdroje	Surface and Coatings Technology
http://linked.open...in/vavai/riv/obor	JI
http://linked.open...ichTvurcuVysledku	1 (xsd:int)
http://linked.open...cetTvurcuVysledku	6 (xsd:int)
http://linked.open...vavai/riv/projekt	Stability of bioactive layered structures in model human body fluids.
http://linked.open...UplatneniVysledku	2013
http://linked.open...v/svazekPeriodika	232
http://linked.open...iv/tvurceVysledku	Cavaleiro, A. Escudeiro, A. Polcar, Tomáš Carvalho, S. Manninen, N. K. Ribeiro, F.
http://linked.open...ain/vavai/riv/wos	000327691300059
issn	0257-8972
number of pages	7 (xsd:int)
http://bibframe.org/vocab/doi	10.1016/j.surfcoat.2013.05.048
http://localhost/t...ganizacniJednotka	21230

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