| Issue |
J. Phys. IV France
Volume 04, Number 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) | C7-603 - C7-606 | |
| DOI | https://doi.org/10.1051/jp4:19947142 | |
8th International Topical Meeting on Photoacoustic and Photothermal Phenomena
8 ITMP3 / 8éme conférence internationale de photoacoustique et photothermique
J. Phys. IV France 04 (1994) C7-603-C7-606
DOI: 10.1051/jp4:19947142
Fraunhofer-Institute for Nondestructive Testing (IzfP), University, Bldg. 37, 66123 Saarbrücken, Germany
© EDP Sciences 1994
8 ITMP3 / 8éme conférence internationale de photoacoustique et photothermique
J. Phys. IV France 04 (1994) C7-603-C7-606
DOI: 10.1051/jp4:19947142
Detection of surface damage in ceramics by photothermal and photoacoustic techniques
H. Zhang, S. Gissinger, G. Weides and U. NetzelmannFraunhofer-Institute for Nondestructive Testing (IzfP), University, Bldg. 37, 66123 Saarbrücken, Germany
Abstract
Cracks produced by indenters in zirconia-TiC ceramic and surface defects in SiSiC ceramic generated by machining were imaged by photothermal radiometry, mirage effect, photoacoustic microscopy with gas cell and piezoelectric detection and scanning acoustic microscopy. The different appearance of the artificial cracks is studied in comparison.
© EDP Sciences 1994