Transient thermography testing of unpainted thermal barrier coating surfaces

Grzegorz Ptaszek, Peter Cawley, Darryl Almond, Simon Pickering

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

1 Citation (Scopus)

Abstract

This paper has investigated the effects of uneven surface discolouration of a thermal barrier coating (TBC) and of its IR translucency on the thermal responses observed by using mid and long wavelength IR cameras. It has been shown that unpainted blades can be tested satisfactorily by using a more powerful flash heating system and a long wavelength IR camera. The problem of uneven surface emissivity can be overcome by applying 2 nd derivative processing of the log-log surface cooling curves.

Original languageEnglish
Title of host publicationReview of Progress in Quantitative Nondestructive Evaluation, Volume 32
EditorsDale E. Chimenti, Donald O. Thompson
PublisherAmerican Institute of Physics Inc.
Pages571-578
Number of pages8
ISBN (Electronic)9780735411296
DOIs
Publication statusPublished - 1 Jan 2013
Event39th Annual Review of Progress in Quantitative Nondestructive Evaluation, QNDE 2012 - Denver, USA United States
Duration: 15 Jul 201220 Jul 2012

Publication series

NameAIP Conference Proceedings
Volume1511
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

Conference39th Annual Review of Progress in Quantitative Nondestructive Evaluation, QNDE 2012
CountryUSA United States
CityDenver
Period15/07/1220/07/12

Keywords

  • Disbond
  • Emissivity
  • IR Camera
  • TBC
  • Thermal Barrier Coating
  • Thermal Contrast
  • Thermal Response
  • Thermography

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Ptaszek, G., Cawley, P., Almond, D., & Pickering, S. (2013). Transient thermography testing of unpainted thermal barrier coating surfaces. In D. E. Chimenti, & D. O. Thompson (Eds.), Review of Progress in Quantitative Nondestructive Evaluation, Volume 32 (pp. 571-578). (AIP Conference Proceedings; Vol. 1511). American Institute of Physics Inc.. https://doi.org/10.1063/1.4789098