| 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 |
|
|---|---|---|
| Page(s) | C7-599 - C7-602 | |
| DOI | https://doi.org/10.1051/jp4:19947141 | |
8th International Topical Meeting on Photoacoustic and Photothermal Phenomena
8 ITMP3 / 8éme conférence internationale de photoacoustique et photothermique
J. Phys. IV France 04 (1994) C7-599-C7-602
DOI: 10.1051/jp4:19947141
1 AMSTA-JA, US Army Tank-Automotive Command, Warren, MI 48397-5000, U.S.A.
2 AMSRL-MA-CA, US Army Research Laboratory, Watertown, MA 02172-0001, U.S.A.
© EDP Sciences 1994
8 ITMP3 / 8éme conférence internationale de photoacoustique et photothermique
J. Phys. IV France 04 (1994) C7-599-C7-602
DOI: 10.1051/jp4:19947141
Photoacoustic microscopy of indentation lateral cracks
D.N. Rose1, D.C. Bryk1, G. Arutunian1, J.E. Dumar1 and M.J. Slavin21 AMSTA-JA, US Army Tank-Automotive Command, Warren, MI 48397-5000, U.S.A.
2 AMSRL-MA-CA, US Army Research Laboratory, Watertown, MA 02172-0001, U.S.A.
Abstract
Understanding the fracture process in advanced ceramics is of obvious use for improving their strength, toughness and ultimately performance. The lateral cracking process is related to wear in particular. Photoacoustic microscopy is used here to view lateral cracks produced in a controlled manner by Vicker's indentations in hot pressed silicon nitride (NC 132, Norton Co.). Eventually, a figure of merit related to bearing performance may emerge.
© EDP Sciences 1994