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000279915 037__ $$aFZJ-2015-07789
000279915 041__ $$aEnglish
000279915 1001_ $$0P:(DE-Juel1)129630$$aMack, Daniel Emil$$b0$$eCorresponding author$$ufzj
000279915 1112_ $$aThe 11th Pacific Rim Conference of Ceramic Societies$$cJeju$$d2015-08-30 - 2015-09-04$$gPACRIM11$$wKorea
000279915 245__ $$aDegradation and Failure Modes of Advanced Materials in CMAS Burner Rig Testing
000279915 260__ $$c2015
000279915 3367_ $$0PUB:(DE-HGF)6$$2PUB:(DE-HGF)$$aConference Presentation$$bconf$$mconf$$s1453194168_25282$$xInvited
000279915 3367_ $$033$$2EndNote$$aConference Paper
000279915 3367_ $$2DataCite$$aOther
000279915 3367_ $$2ORCID$$aLECTURE_SPEECH
000279915 3367_ $$2DRIVER$$aconferenceObject
000279915 3367_ $$2BibTeX$$aINPROCEEDINGS
000279915 520__ $$aFacing the demands on efficiency and operational flexibility of gas turbines advanced materials solutions allowing for use at increased turbine inlet temperatures are being developed with considerable progress. In addition to the extreme thermomechanical loads in the hottest part of the gas turbines also degradation of ceramic thermal barrier coatings (TBCs) due to calcium–magnesium–aluminosilicate (CMAS) glassy deposits from various sources has become a persistent challenge since some years. Meanwhile the understanding of the mechanism of CMAS induced degradation of TBC as well as approaches for mitigating CMAS attack by means of advanced TBC compositions have grown remarkably. However, most of the reported results have been obtained from isothermal lab testing or evaluation of ex-service components either.In this study a burner rig facility has been used for the evaluation of advanced TBC performance, where a thermal gradient is applied across the TBC, with simultaneous injection of CMAS to simulate the conditions closer to actual service in an engine. Tests have been performed on TBC systems comprising top coats from advanced materials as pyrochlores, garnets, hexaaluminates, spinels, or alumina. Characterization after test has been done by means of SEM, EDX and XRD. Major impacts of chemical degradation and mitigation mechanism  on thermal gradient cycling lifetime are reviewed.
000279915 536__ $$0G:(DE-HGF)POF3-113$$a113 - Methods and Concepts for Material Development (POF3-113)$$cPOF3-113$$fPOF III$$x0
000279915 7001_ $$0P:(DE-Juel1)129618$$aJarligo, Maria Ophelia$$b1
000279915 7001_ $$0P:(DE-Juel1)129670$$aVassen, Robert$$b2$$ufzj
000279915 7001_ $$0P:(DE-Juel1)161591$$aGuillon, Olivier$$b3$$ufzj
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000279915 9101_ $$0I:(DE-588b)5008462-8$$6P:(DE-Juel1)161591$$aForschungszentrum Jülich GmbH$$b3$$kFZJ
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000279915 9141_ $$y2015
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000279915 9201_ $$0I:(DE-Juel1)IEK-1-20101013$$kIEK-1$$lWerkstoffsynthese und Herstellungsverfahren$$x0
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