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Improved Metallography Of Thermal-Barrier CoatingsNew technique for preparation of metallographic samples makes interpretation of images of pores and microcracks more reliable. Involves use of vacuum epoxy infiltration and interference-film coating to reduce uncertainty. Developed for inspection of plasma-sprayed ceramic thermal-barrier coatings on metals but applicable to other porous, translucent materials, including many important ceramics.
Document ID
19910000147
Acquisition Source
Legacy CDMS
Document Type
Other - NASA Tech Brief
Authors
Brindley, William J. (NASA Lewis Research Center, Cleveland, OH.)
Leonhardt, Todd A. (Sverdrup Technology, Inc.)
Date Acquired
August 14, 2013
Publication Date
April 1, 1991
Publication Information
Publication: NASA Tech Briefs
Volume: 15
Issue: 4
ISSN: 0145-319X
Subject Category
Physical Sciences
Report/Patent Number
LEW-15006
Accession Number
91B10147
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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