Thermal cycling of YAG infiltration and plasma sprayed coatings as environmental barrier coating on ceramic heat shields for use in hydrogen operating gas turbines

Environmental barrier coatings (EBC) are intended to protect alumina ceramic tiles in hot water vapor conditions, enabling gas turbines to operate with higher hydrogen content or even pure hydrogen. For these operating conditions, yttrium aluminum garnet (YAG) promises the highest protection against...

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Vydáno v:	Open ceramics Ročník 23; s. 100837
Hlavní autoři:	Müller-Elmau, J.C., Göbel, A., Junge, P., Müller, J.T., Rousseau, T.C., Görke, O., Nikasch, C., Kiliani, S.
Médium:	Journal Article
Jazyk:	angličtina
Vydáno:	Elsevier Ltd 01.09.2025 Elsevier
Témata:	environmental barrier coating (EBC) thermal cycles Thermal shock water vapor corrosion yttrium aluminum garnet (YAG) yttrium aluminum garnet (YAG) water vapor corrosion environmental barrier coating (EBC) Thermal shock thermal cycles
ISSN:	2666-5395, 2666-5395
On-line přístup:	Získat plný text
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Popis
Shrnutí:	Environmental barrier coatings (EBC) are intended to protect alumina ceramic tiles in hot water vapor conditions, enabling gas turbines to operate with higher hydrogen content or even pure hydrogen. For these operating conditions, yttrium aluminum garnet (YAG) promises the highest protection against hydrolysis, which can be applied via atmospheric plasmaspraying (APS). To enhance the protection efficiency, the coating is combined with a prior infiltration of the base material. The obtained design acts as in-depth protection even if the coating exhibits cracks. [Display omitted]
ISSN:	2666-5395 2666-5395
DOI:	10.1016/j.oceram.2025.100837