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Graded Thermal Barrier Coating Systems for gas turbine applications

✍ Scribed by U. Leushake; T. Krell; U. Schulz

Publisher
John Wiley and Sons
Year
1997
Tongue
English
Weight
500 KB
Volume
28
Category
Article
ISSN
0933-5137

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✦ Synopsis

Abstract

Improved thermal barrier coatings can lead to increased engine operating efficiency. A significant problem is that multilayer systems are not thermally stable at elevated temperatures. Phenomena such as interdiffusion, oxidation and sintering take place, limiting coating lifetime. In order to extend lifetimes and/or increase service temperatures several modifications can be made to coating‐substrate systems. Some solutions involve the utilization of the functionally graded material concept. In this paper, potential applications for functionally graded materials in thermal barrier coating systems are discussed, and research results are summarized providing an overview of the state‐of‐the‐art.

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