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Noncontact Ultrasonic Characterization of Ceramics
Author(s) -
Jen ChengKuei,
Cielo Paolo,
Maldague Xavier,
ElAssal Kamal
Publication year - 1985
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1151-2916.1985.tb15222.x
Subject(s) - materials science , ceramic , ultrasonic sensor , characterization (materials science) , piezoelectricity , laser , overheating (electricity) , optics , composite material , acoustics , nanotechnology , physics , quantum mechanics
A noncontact ultrasonic technique for the characterization of piezoelectric ceramics is described. The velocity of a laser‐generated surface‐acoustic‐wave pulse propagating at the surface of the ceramic material is measured by an optical probe. The laser beam has an annular section in order to produce a conveniently strong ultrasonic pulse without overheating the surface. Applications to the characterization of PZT samples are described.