The non-destructive and nano-microstructural characterization of thermal-barrier coatings

Y. H. Sohn; B. Jayaraj; S. Laxman; B. Franke; J. W. Byeon; A. M. Karlsson

doi:10.1007/s11837-004-0292-2

The non-destructive and nano-microstructural characterization of thermal-barrier coatings

Y. H. Sohn, B. Jayaraj, S. Laxman, B. Franke, J. W. Byeon, A. M. Karlsson

Dept. of Mechanical Convergence Engineering

Research output: Contribution to journal › Article › peer-review

16 Scopus citations

Abstract

The durability of thermal barrier coatings (TBCs) plays an important role in the service reliability and maintainability of hot-section components in advanced turbine engines for aerospace and utility applications. Photostimulated luminescence spectroscopy (PSLS) and electrochemical impedance spectroscopy (EIS) are being concurrently developed as complimentary non-destructive evaluation (NDE) techniques for quality control and life-remain assessment of TBCs. This paper discusses recent achievements in understanding the residual stress, phase constituents, and electrochemical resistance (or capacitance) of TBC constituents - with an emphasis on the thermally grown oxide. Results from NDE by PSLS and EIS are correlated to the nano- and microstructural development of TBCs.

Original language	English
Pages (from-to)	53-56
Number of pages	4
Journal	JOM
Volume	56
Issue number	10
DOIs	https://doi.org/10.1007/s11837-004-0292-2
State	Published - Oct 2004

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abstract = "The durability of thermal barrier coatings (TBCs) plays an important role in the service reliability and maintainability of hot-section components in advanced turbine engines for aerospace and utility applications. Photostimulated luminescence spectroscopy (PSLS) and electrochemical impedance spectroscopy (EIS) are being concurrently developed as complimentary non-destructive evaluation (NDE) techniques for quality control and life-remain assessment of TBCs. This paper discusses recent achievements in understanding the residual stress, phase constituents, and electrochemical resistance (or capacitance) of TBC constituents - with an emphasis on the thermally grown oxide. Results from NDE by PSLS and EIS are correlated to the nano- and microstructural development of TBCs.",

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AU - Byeon, J. W.

AU - Karlsson, A. M.

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AB - The durability of thermal barrier coatings (TBCs) plays an important role in the service reliability and maintainability of hot-section components in advanced turbine engines for aerospace and utility applications. Photostimulated luminescence spectroscopy (PSLS) and electrochemical impedance spectroscopy (EIS) are being concurrently developed as complimentary non-destructive evaluation (NDE) techniques for quality control and life-remain assessment of TBCs. This paper discusses recent achievements in understanding the residual stress, phase constituents, and electrochemical resistance (or capacitance) of TBC constituents - with an emphasis on the thermally grown oxide. Results from NDE by PSLS and EIS are correlated to the nano- and microstructural development of TBCs.

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The non-destructive and nano-microstructural characterization of thermal-barrier coatings

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