Inspecting thermal barrier coatings by IR thermography

P. G. Bison, S. Marinetti, E. Grinzato, V. Vavilov, F. Cernuschi, D. Robba

Center for Industrial Tomography

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

Thermal barrier coatings are increasingly used in industry for protecting machine components, such as turbine blades, liners and vanes, from aggressive environments and high temperatures. The quality of bonding between a coating and substrate is crucial in ensuring a required lifetime of components. IR pulsed thermography proved to be a useful tool in detecting bonding defects and evaluating coating thickness. The paper is focused on the statistical defect detection and discrimination between delaminations and coating thickness variations.

Original language	English
Title of host publication	Proceedings of SPIE - The International Society for Optical Engineering
Editors	K.E. Cramer, X.P. Maldague
Pages	318-327
Number of pages	10
Volume	5073
DOIs	https://doi.org/10.1117/12.486019
Publication status	Published - 2003
Event	Thermosense XXV - Orlando, FL, United States Duration: 22 Apr 2003 → 24 Apr 2003

Other

Other	Thermosense XXV
Country	United States
City	Orlando, FL
Period	22.4.03 → 24.4.03

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Keywords

Delamination
Image processing
IR thermographic NDT
Signal-to-noise ratio
Thermal barrier coating

ASJC Scopus subject areas

Electrical and Electronic Engineering
Condensed Matter Physics

Cite this

Bison, P. G., Marinetti, S., Grinzato, E., Vavilov, V., Cernuschi, F., & Robba, D. (2003). Inspecting thermal barrier coatings by IR thermography. In K. E. Cramer, & X. P. Maldague (Eds.), Proceedings of SPIE - The International Society for Optical Engineering (Vol. 5073, pp. 318-327) https://doi.org/10.1117/12.486019

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Access to Document

10.1117/12.486019