Please use this identifier to cite or link to this item: http://hdl.handle.net/10316/12887
DC FieldValueLanguage
dc.contributor.authorSilva, Carlos W. Moura e-
dc.contributor.authorAlves, E.-
dc.contributor.authorRamos, A. R.-
dc.contributor.authorSandu, Cosmin S.-
dc.contributor.authorCavaleiro, A.-
dc.date.accessioned2010-03-12T14:30:12Z-
dc.date.available2010-03-12T14:30:12Z-
dc.date.issued2009-06-16-
dc.identifier.citationVacuum. 83:10 (2009) 1213-1217en_US
dc.identifier.issn0042-207X-
dc.identifier.urihttp://hdl.handle.net/10316/12887-
dc.description.abstractIn this work, the lack of adhesion occurred during the up-scaling of the deposition of tribological coatings in a semi-industrial apparatus is interpreted. The adhesion problems were detected for both hard and self-lubricant coatings from W-Ti-N and W:C systems, respectively, when they were deposited in a 4 cathodes TEER® chamber by reactive unbalanced magnetron sputtering. In spite of cleaning the substrates surface by ion bombardment prior to deposition, by establishing a discharge close to the substrate, insufficient adhesion critical load values were measured by scratch-testing. A powerful set of complementary techniques was used to the detailed analysis of the interfaces in order to understand and overcome the adhesion problems: RBS gave some insights on the nature of the problem by detecting composition anomalies in the substrate/coating interface; Auger spectroscopy was used for identifying the underneath chemical composition close to the interface; cross section TEM gave the final evidence of the presence of a contamination layer attributed to malfunctioning of the ion cleaning process, which was the cause of the lack of adhesionen_US
dc.language.isoengen_US
dc.publisherElsevier Ltd.en_US
dc.rightsopenAccessen_US
dc.subjectDLC coatingsen_US
dc.subjectAdhesionen_US
dc.subjectContamination layeren_US
dc.subjectIon cleaningen_US
dc.titleAdhesion failures on hard coatings induced by interface anomaliesen_US
dc.typearticleen_US
item.fulltextCom Texto completo-
item.grantfulltextopen-
item.languageiso639-1en-
Appears in Collections:FCTUC Eng.Mecânica - Artigos em Revistas Internacionais
Files in This Item:
File Description SizeFormat
Adhesion failures on hard coatings induced.pdf468.96 kBAdobe PDFView/Open
Show simple item record

Page view(s) 50

280
checked on Nov 6, 2019

Download(s) 50

232
checked on Nov 6, 2019

Google ScholarTM

Check


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.