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Acoustic imaging of subtle porosity variations in ceramicsAcoustic images of silicon carbide ceramic disks were obtained using a precision scanning contact pulse-echo technique. Phase and cross-correlation velocity and attenuation maps were used to form color images of microstructural variations. These acoustic images reveal microstructural variations not observable with X-radiography.
Document ID
19880067817
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Generazio, E. R. (NASA Lewis Research Center Cleveland, OH, United States)
Roth, D. J. (NASA Lewis Research Center Cleveland, OH, United States)
Baaklini, G. Y. (NASA Lewis Research Center Cleveland, OH, United States)
Date Acquired
August 13, 2013
Publication Date
September 1, 1988
Publication Information
Publication: Materials Evaluation
Volume: 46
ISSN: 0025-5327
Subject Category
Nonmetallic Materials
Accession Number
88A55044
Distribution Limits
Public
Copyright
Other

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