Thermal cycling behaviour of plasma-sprayed thermal barrier coatings with pre-oxidized NiCrAlY and NiCoCrAlY bond-coats

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dc.contributor.authorSlámečka, Karelcs
dc.contributor.authorJech, Davidcs
dc.contributor.authorKlakurková, Lenkacs
dc.contributor.authorTkachenko, Serhiics
dc.contributor.authorRemešová, Michaelacs
dc.contributor.authorGejdoš, Pavelcs
dc.contributor.authorČelko, Ladislavcs
dc.coverage.issue1cs
dc.coverage.volume23cs
dc.date.issued2020-02-19cs
dc.description.abstractThis contribution deals with thermal cycling of thermal barrier coatings (TBCs) with NiCrAlY and NiCoCrAlY bond-coats, and yttria stabilized zirconia (YSZ) top-coat that were prepared by atmospheric plasma spraying from commercial powders. The samples were pre-oxidized, based on isothermal oxidation of the two bond-coats, in order to diminish the influence of residual stresses after spraying on thermal cycling experiments. Surface topographies of both bond-coats were measured using optical profilometry and several surface parameters were evaluated to characterize them. Microstructural degradation caused by thermal cycling was examined by scanning electron microscopy with an emphasis on the role of bond-coat surface features on local damage mechanisms. An important micromechanism for TBCs with the NiCoCrAlY bond-coat was multiple parallel cracking of the TGO layer that was likely also responsible for lower endurance of these coatings.en
dc.formattextcs
dc.format.extent439-444cs
dc.format.mimetypeapplication/pdfcs
dc.identifier.citationProcedia Structural Integrity. 2020, vol. 23, issue 1, p. 439-444.en
dc.identifier.doi10.1016/j.prostr.2020.01.126cs
dc.identifier.isbn978-80-214-5760-7cs
dc.identifier.issn2452-3216cs
dc.identifier.orcid0000-0001-8847-075Xcs
dc.identifier.orcid0000-0002-9367-501Xcs
dc.identifier.orcid0000-0002-2917-0287cs
dc.identifier.orcid0000-0001-9111-1520cs
dc.identifier.orcid0000-0003-1678-5618cs
dc.identifier.orcid0000-0001-5955-9763cs
dc.identifier.orcid0000-0003-0264-3483cs
dc.identifier.other163208cs
dc.identifier.researcheridD-9475-2012cs
dc.identifier.researcheridG-9574-2014cs
dc.identifier.researcheridE-2040-2012cs
dc.identifier.researcheridG-7772-2018cs
dc.identifier.researcheridAAA-8935-2021cs
dc.identifier.researcheridE-3735-2012cs
dc.identifier.researcheridD-6870-2012cs
dc.identifier.scopus16242487800cs
dc.identifier.scopus24779209000cs
dc.identifier.scopus55223374100cs
dc.identifier.scopus56177144000cs
dc.identifier.scopus49863280700cs
dc.identifier.scopus25621022900cs
dc.identifier.urihttp://hdl.handle.net/11012/193513
dc.language.isoencs
dc.publisherElseviercs
dc.relation.ispartofProcedia Structural Integritycs
dc.relation.urihttps://www.sciencedirect.com/science/article/pii/S245232162030192Xcs
dc.rightsCreative Commons Attribution-NonCommercial-NoDerivatives 4.0 Internationalcs
dc.rights.accessopenAccesscs
dc.rights.sherpahttp://www.sherpa.ac.uk/romeo/issn/2452-3216/cs
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/cs
dc.subjectThermal barrier coatingsen
dc.subjectBond-coaten
dc.subjectPlasma sprayen
dc.subjectRoughnessen
dc.subjectOxidationen
dc.subjectThermal cyclingen
dc.titleThermal cycling behaviour of plasma-sprayed thermal barrier coatings with pre-oxidized NiCrAlY and NiCoCrAlY bond-coatsen
dc.type.driverconferenceObjecten
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen
sync.item.dbidVAV-163208en
sync.item.dbtypeVAVen
sync.item.insts2025.02.03 16:10:34en
sync.item.modts2025.01.17 16:49:54en
thesis.grantorVysoké učení technické v Brně. Středoevropský technologický institut VUT. Pokročilé instrumentace a metody pro charakterizace materiálůcs
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