Inspecting thermal barrier coatings by IR thermography

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

Research output: Chapter in Book/Report/Conference proceedingConference contribution

28 Citations (Scopus)


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 languageEnglish
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
EditorsK.E. Cramer, X.P. Maldague
Number of pages10
Publication statusPublished - 2003
EventThermosense XXV - Orlando, FL, United States
Duration: 22 Apr 200324 Apr 2003


OtherThermosense XXV
CountryUnited States
CityOrlando, FL


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

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Condensed Matter Physics

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