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Nondestructive Characterization of Enviromental Barrier Coatings Applied to Monolithic Ceramics

[+] Author Affiliations
W. A. Ellingson, C. Deemer, S. Erdman, A. Parikh

Argonne National Laboratory, Argonne, IL

Paper No. GT2002-30645, pp. 179-185; 7 pages
doi:10.1115/GT2002-30645
From:
  • ASME Turbo Expo 2002: Power for Land, Sea, and Air
  • Volume 4: Turbo Expo 2002, Parts A and B
  • Amsterdam, The Netherlands, June 3–6, 2002
  • Conference Sponsors: International Gas Turbine Institute
  • ISBN: 0-7918-3609-6 | eISBN: 0-7918-3601-0
  • Copyright © 2002 by ASME

abstract

Full-size silicon nitride gas-turbine vanes coated with an environmental barrier coating (EBC) were evaluated in an exploratory way by two nondestructive methods: polarized elastic optical scattering and infrared thermal imaging. Initial test results indicate that the laser scatter data correlate with EBC thickness. A description of the methods and results of recent tests are presented.

Copyright © 2002 by ASME

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