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Laser-Ultrasonics for Materials Characterization

Published online by Cambridge University Press:  21 February 2011

J.-P. Monchalin ,
J.-D. Aussel ,
R. Héon ,
J. F. Bussière  and
P. Bouchard
J.-P. Monchalin
Affiliation:
National Research Council Canada, Industrial Materials Research Institute 75 De Mortagne Blvd., Boucherville, Québec, Canada J4B 6Y4
J.-D. Aussel
Affiliation:
National Research Council Canada, Industrial Materials Research Institute 75 De Mortagne Blvd., Boucherville, Québec, Canada J4B 6Y4
R. Héon
Affiliation:
National Research Council Canada, Industrial Materials Research Institute 75 De Mortagne Blvd., Boucherville, Québec, Canada J4B 6Y4
J. F. Bussière
Affiliation:
National Research Council Canada, Industrial Materials Research Institute 75 De Mortagne Blvd., Boucherville, Québec, Canada J4B 6Y4
P. Bouchard
Affiliation:
Tecrad Inc., 1000 Ave. St. Jean-Baptiste, Québec, Québec, Canada G2E 5G5
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Abstract

Several material properties and microstructural features can be determined or monitored by measuring ultrasonic velocity and/or ultrasonic attenuation. Conventional techniques which use piezoelectric transducers for generation and reception have several limitations, in particular in the case of materials at elevated temperature, of samples of complex shapes, and in regard to the detection bandwidth. These limitations are eliminated by laser-ultrasonics, a technique which uses lasers for generation and detection of ultrasound. Following a review of the various principles and methods used for generation and detection, we discuss the use of laserultrasonics for velocity and attenuation measurement. Examples of application to various materials are presented.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 142: Symposium U – Nondestructive Monitoring of Materials Properties , 1988 , 27
Copyright
Copyright © Materials Research Society 1989

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