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

Facets (new session)
Description
Metadata
Settings
- owl:sameAs
- Inference Rule:

About: Tribological behaviour of W-alloyed carbon-based coatings in dry and lubricated sliding contact Goto Sponge NotDistinct Permalink

An Entity of Type : http://linked.opendata.cz/ontology/domain/vavai/Vysledek, within Data Space : linked.opendata.cz associated with source document(s)

Attributes	Values
rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	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 degrees C; however, at higher temperature, the coatings were quickly worn through. 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 degrees C; however, at higher temperature, the coatings were quickly worn through. (en)
Title	Tribological behaviour of W-alloyed carbon-based coatings in dry and lubricated sliding contact Tribological behaviour of W-alloyed carbon-based coatings in dry and lubricated sliding contact (en)
skos:prefLabel	Tribological behaviour of W-alloyed carbon-based coatings in dry and lubricated sliding contact Tribological behaviour of W-alloyed carbon-based coatings in dry and lubricated sliding contact (en)
skos:notation	RIV/68407700:21230/14:00225599!RIV15-GA0-21230___
http://linked.open...avai/riv/aktivita	P
http://linked.open...avai/riv/aktivity	P(GAP108/10/1782)
http://linked.open...iv/cisloPeriodika	6
http://linked.open...vai/riv/dodaniDat	2015
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	51283
http://linked.open...ai/riv/idVysledku	RIV/68407700:21230/14:00225599
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	physical vapour deposition (PVD); tribology; amorphous carbon; coatings; lubrication (en)
http://linked.open.../riv/klicoveSlovo	tribology amorphous carbon lubrication coatings physical vapour deposition (PVD)
http://linked.open...odStatuVydavatele	GB - Spojené království Velké Británie a Severního Irska
http://linked.open...ontrolniKodProRIV	[774AC78D5E31]
http://linked.open...i/riv/nazevZdroje	Lubrication Science
http://linked.open...in/vavai/riv/obor	JI
http://linked.open...ichTvurcuVysledku	1 (xsd:int)
http://linked.open...cetTvurcuVysledku	3 (xsd:int)
http://linked.open...vavai/riv/projekt	Stability of bioactive layered structures in model human body fluids.
http://linked.open...UplatneniVysledku	2014
http://linked.open...v/svazekPeriodika	26
http://linked.open...iv/tvurceVysledku	Cavaleiro, A. Evaristo, M. Polcar, Tomáš
http://linked.open...ain/vavai/riv/wos	000342983900003
issn	0954-0075
number of pages	12 (xsd:int)
http://bibframe.org/vocab/doi	10.1002/ls.1259
http://localhost/t...ganizacniJednotka	21230

Faceted Search & Find service v1.16.118 as of Jun 21 2024

Alternative Linked Data Documents: ODE Content Formats:

RDF

ODATA

Microdata

About

OpenLink Virtuoso version 07.20.3240 as of Jun 21 2024, on Linux (x86_64-pc-linux-gnu), Single-Server Edition (126 GB total memory, 58 GB memory in use)
Data on this page belongs to its respective rights holders.
Virtuoso Faceted Browser Copyright © 2009-2024 OpenLink Software