Investigating the thermal, mechanical and thermal cyclic properties of plasma-sprayed Al2O3-7YSZ/7YSZ double ceramic layer TBCs

Double ceramic layer (DCL) TBCs consisting of a top 20 wt.% Al2O3-7YSZ layer and a bottom 7YSZ layer were desirably designed to achieve preferable performance while the thermal, mechanical and thermal cyclic properties were comprehensively investigated. Compared to the conventional 7YSZ TBCs, the th...

Celý popis

Uložené v:

Podrobná bibliografia
Vydané v:	Journal of the European Ceramic Society Ročník 43; číslo 9; s. 4124 - 4135
Hlavní autori:	Han, Jiasen, Zou, Yong, Wu, Dongting, Zhang, Yongang
Médium:	Journal Article
Jazyk:	English
Vydavateľské údaje:	Elsevier Ltd 01.08.2023
Predmet:	Al2O3/7YSZ composite coating Double ceramic layer TBCs properties Thermal cyclic behavior Thermal cyclic behavior Double ceramic layer TBCs properties Al2O3/7YSZ composite coating
ISSN:	0955-2219, 1873-619X
On-line prístup:	Získať plný text
Tagy:	Pridať tag Žiadne tagy, Buďte prvý, kto otaguje tento záznam!

Popis
Shrnutí:	Double ceramic layer (DCL) TBCs consisting of a top 20 wt.% Al2O3-7YSZ layer and a bottom 7YSZ layer were desirably designed to achieve preferable performance while the thermal, mechanical and thermal cyclic properties were comprehensively investigated. Compared to the conventional 7YSZ TBCs, the thermal insulation properties of the DCL coating were significantly improved due to the increased oxygen vacancy concentration induced by Al2O3 addition while the thickness of the thermally grown oxides was diminished by the decreased oxygen diffusion rate. Furthermore, the improved fracture toughness of the DCL coating also prolonged the thermal cyclic life.
ISSN:	0955-2219 1873-619X
DOI:	10.1016/j.jeurceramsoc.2023.03.004