Failure of Gadolinium Zirconate and Yttria Stabilized Zirconia Thermal Barrier Coatings Subjected to High Temperature Calcia-Magnesia-Alumino-Sisicate Attack

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dc.contributor.authorČelko, Ladislavcs
dc.contributor.authorJech, Davidcs
dc.contributor.authorTkachenko, Serhiics
dc.contributor.authorKomarov, Pavelcs
dc.contributor.authorRemešová, Michaelacs
dc.contributor.authorSlámečka, Karelcs
dc.contributor.authorCtibor, Pavelcs
dc.coverage.issue1cs
dc.coverage.volume23cs
dc.date.accessioned2020-08-04T11:03:34Z
dc.date.available2020-08-04T11:03:34Z
dc.date.issued2020-02-19cs
dc.description.abstractNowadays, the contribution of rare-earth oxide compounds is extensively investigated with the aim to improve the service life of gas turbine engine components protected by thermal barrier coatings (TBCs) against the environmental Calcia-Magnesia-Alumino-Silicate (CMAS) attack. Therefore, the TBCs consisting of NiCrAlY bond coat, Yttria Stabilized Zirconia (YSZ) and/or mixture of YSZ and Gadolinium Zirconate (YSZ+GZ) interlayers, and a GZ top coat, which were all deposited by atmospheric plasma spraying onto the nickel-based superalloy substrates, are introduced in this contribution. The CMAS-attack resistance was evaluated using an indirect method. Firstly, the htin layer of CMAS prepared from colloidal solutions was deposited onto the top coat surface and, after drying, the samples were heat treated with the aim to glassified the CMAS. Secondly, the coated samples containing CMAS glass debris were subjected to rapid heating (up to 1200 °C) and enforced cooling cycles at the burner-rig test device and the failure of TBC was investigated. In all cases, the failure mechanism due to the CMAS attack was the top coat spallation. The functional graded TBC was found to be the most resistant system.en
dc.formattextcs
dc.format.extent360-365cs
dc.format.mimetypeapplication/pdfcs
dc.identifier.citationProcedia Structural Integrity. 2020, vol. 23, issue 1, p. 360-365.en
dc.identifier.doi10.1016/j.prostr.2020.01.113cs
dc.identifier.isbn978-80-214-5760-7cs
dc.identifier.issn2452-3216cs
dc.identifier.other163430cs
dc.identifier.urihttp://hdl.handle.net/11012/186779
dc.language.isoencs
dc.publisherElseviercs
dc.relation.ispartofProcedia Structural Integritycs
dc.relation.urihttps://www.sciencedirect.com/science/article/pii/S2452321620301797cs
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.subjectAtmospheric Plasma Sprayingen
dc.subjectThermal Barrier Coatingsen
dc.subjectGadolinium Zirconateen
dc.subjectCalcia-Magnesia-Alumino-Silicate Glassen
dc.subjectHigh Temperatureen
dc.titleFailure of Gadolinium Zirconate and Yttria Stabilized Zirconia Thermal Barrier Coatings Subjected to High Temperature Calcia-Magnesia-Alumino-Sisicate Attacken
dc.type.driverconferenceObjecten
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen
sync.item.dbidVAV-163430en
sync.item.dbtypeVAVen
sync.item.insts2021.03.05 12:54:28en
sync.item.modts2021.03.05 12:14:23en
thesis.grantorVysoké učení technické v Brně. Středoevropský technologický institut VUT. Charakterizace materiálů a pokročilé povlaky 1-06cs
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