Title

Microstructure And Phase Constituents Of The Thermally Grown Oxide In Thermal Barrier Coatings

Abstract

The thermally grown oxide (TGO) scale in thermal barrier coatings (TBCs) has been frequently associated with the durability and reliability of TBCs. In this study, the microstructure and phase constituents of the TGO scale were examined using transmission and scanning transmission electron microscopy (TEM/STEM). The TGO scales in several types of TBCs were examined before and after initial thermal cyclic oxidation that represents 10% of their lifetimes. Results from TEM/STEM are presented with emphasis on the polymorphic constituents of Al 2O 3, constituents of the mixed oxide zone, reactive-element oxides, and Ni/Co rich oxides, formation of voids, and integrity of critical interfaces.

Publication Date

12-1-2005

Publication Title

Ceramic Engineering and Science Proceedings

Volume

26

Issue

3

Number of Pages

95-102

Document Type

Article; Proceedings Paper

Personal Identifier

scopus

Socpus ID

32044466063 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/32044466063

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