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Quantitative thermal diffusivity imaging of disbonds in thermal protective coatings using inductive heatingAn inductive heating technique for making thermal diffusivity images of disbonds between thermal protective coatings and their substrates is presented. Any flaw in the bonding of the coating and the substrate shows as an area of lowered values in the diffusivity image. The benefits of the inductive heating approach lie in its ability to heat the conductive substrate without directly heating the dielectric coating. Results are provided for a series of samples with fabricated disbonds, for a range of coating thicknesses.
Document ID
19920030938
Acquisition Source
Legacy CDMS
Document Type
Conference Proceedings
Authors
Heath, D. M.
(NASA Langley Research Center Hampton, VA, United States)
Winfree, William P.
(NASA Langley Research Center Hampton, VA, United States)
Date Acquired
August 15, 2013
Publication Date
January 1, 1990
Subject Category
Quality Assurance And Reliability
Accession Number
92A13562
Distribution Limits
Public
Copyright
Other

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