Title :
Nondestructive evaluation of ceramic bearings using THz impulse ranging
Author :
Hess, Lesley ; Cheville, R. Alan
Author_Institution :
Sch. of Electr. & Comput. Eng., Oklahoma State Univ., Stillwater, OK, USA
Abstract :
Non-contact terahertz impulse ranging can detect aluminum oxide bearings damaged by thermal stress. Results using two different analysis techniques are reported which can determine the presence of fractures in a variety of ceramic materials.
Keywords :
alumina; ceramics; machine bearings; nondestructive testing; submillimetre wave measurement; thermal stress cracking; Al/sub 2/O/sub 3/; aluminum oxide bearings; ceramic bearings; fractures; noncontact terahertz impulse ranging; nondestructive evaluation; thermal stress;
Conference_Titel :
Lasers and Electro-Optics, 2004. (CLEO). Conference on
Conference_Location :
San Francisco, CA
Print_ISBN :
1-55752-777-6
