Characterization of plasma sprayed coatings using thermal wave infrared video imaging |
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| Authors: | T. Ahmed Z. J. Feng P. K. Kuo J. Hartikainen J. Jaarinen |
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| Affiliation: | (1) Institute for Manufacturing Research and Department of Physics, Wayne State University, 48202 Detroit, Michigan;(2) Department of Physics, University of Helsinki, SF-00170 Helsinki, Finland |
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| Abstract: | A pulsed (time-domain) thermal wave infrared video imaging technique, using an IR camera, a video image processor, and a flash lamp, is described. This system is applied to the imaging of interfacial defects in plasma sprayed coatings on metallic substrates. Results are compared with the conventional point-scanned cw infrared thermal wave imaging technique. |
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| Keywords: | thermal wave infrared video imaging plasma sprayed coatings thermography pulsed heating |
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