Acceptable limits of degradation of TBC for high-efficient turbines (HET TBC)

Fonte Standard Gras
Identifiant

Unité de recherche

INNOSUISSE

Numéro de projet

7820.3;7 EPRP-IW

Titre du projet

Acceptable limits of degradation of TBC for high-efficient turbines (HET TBC)

Titre du projet anglais

Acceptable limits of degradation of TBC for high-efficient turbines (HET TBC)

Textes relatifs à ce projet

	Allemand	Français	Italien	Anglais
Description succincte	-	-	-
Résumé des résultats (Abstract)	-	-	-

Textes saisis

Catégorie	Texte
Description succincte (Anglais)	Acceptable limits of degradation of TBC for high-efficient turbines (HET TBC)
Résumé des résultats (Abstract) (Anglais)	The project is aimed at the improvement of delamination stability and optimization of thermal conductivity of TBC for high-efficient turbines through optimization of fabrication process. Phase transitions and microstructure change in YSZ under combined action of high-temperature cycling, mechanical re-loading, aggressive gases, shrinkage and porosity increase due to sintering will be studied for TBC with different Y content, both as powders and coatings. Influence of impurities and additives will be considered. Studies of TBC exposed at different service temperature from 1100 to 1400 oC for different times will be carried out. Quantitative models will be elaborated for the changes in microstructure, internal stress, and thermal conductivity of TBC during service.

Catégorie

Texte

Description succincte
(Anglais)

Acceptable limits of degradation of TBC for high-efficient turbines (HET TBC)

Résumé des résultats (Abstract)
(Anglais)

The project is aimed at the improvement of delamination stability and optimization of thermal conductivity of TBC for high-efficient turbines through optimization of fabrication process. Phase transitions and microstructure change in YSZ under combined action of high-temperature cycling, mechanical re-loading, aggressive gases, shrinkage and porosity increase due to sintering will be studied for TBC with different Y content, both as powders and coatings. Influence of impurities and additives will be considered. Studies of TBC exposed at different service temperature from 1100 to 1400 oC for different times will be carried out. Quantitative models will be elaborated for the changes in microstructure, internal stress, and thermal conductivity of TBC during service.