| Numéro |
J. Phys. IV France
Volume 04, Numéro C7, Juillet 1994
8th International Topical Meeting on Photoacoustic and Photothermal Phenomena8 ITMP3 / 8éme conférence internationale de photoacoustique et photothermique |
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|---|---|---|
| Page(s) | C7-59 - C7-62 | |
| DOI | https://doi.org/10.1051/jp4:1994715 | |
8th International Topical Meeting on Photoacoustic and Photothermal Phenomena
8 ITMP3 / 8éme conférence internationale de photoacoustique et photothermique
J. Phys. IV France 04 (1994) C7-59-C7-62
DOI: 10.1051/jp4:1994715
The Johns Hopkins University, Applied Physics Laboratory, Laurel, MD 20723-6099, U.S.A.
© EDP Sciences 1994
8 ITMP3 / 8éme conférence internationale de photoacoustique et photothermique
J. Phys. IV France 04 (1994) C7-59-C7-62
DOI: 10.1051/jp4:1994715
Characterization of back surface morphology for corrosion detection using patterned heat sources
J.W.M. Spicer, R. Osiander, L.C. Aamodt and J.C. MurphyThe Johns Hopkins University, Applied Physics Laboratory, Laurel, MD 20723-6099, U.S.A.
Abstract
Characterization of back surface roughness is investigated for specimens exhibiting corrosion and for prepared samples with milled channels of varying geometry. An area heating source is used initially to provide one-dimensional heating of the specimen which allows plate thinning, disbonding, or presence of corrosion to be rapidly detected. A focused heating source is then used to characterize the suspect regions through the interaction of lateral heat flow with back surface roughness.
© EDP Sciences 1994