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Measurements of Elastic Modulus Using Laser-Induced Surface Waves

Published online by Cambridge University Press:  21 February 2011

D. J. Chang ,
S. T. Amimoto ,
R. W. Gross  and
T. S. Glenn
D. J. Chang
Affiliation:
The Aerospace Corporation, M5-753, Mechanics and Propulsion Department, P. O. Box 92957, Los Angeles, CA 90009
S. T. Amimoto
Affiliation:
The Aerospace Corporation, M5-753, Mechanics and Propulsion Department, P. O. Box 92957, Los Angeles, CA 90009
R. W. Gross
Affiliation:
The Aerospace Corporation, M5-753, Mechanics and Propulsion Department, P. O. Box 92957, Los Angeles, CA 90009
T. S. Glenn
Affiliation:
The Aerospace Corporation, M5-753, Mechanics and Propulsion Department, P. O. Box 92957, Los Angeles, CA 90009
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Abstract

Measurements of the elastic modulus of fused silica, 6061-T6 and 7075-T651 aluminum alloys, GaAs, Ge, and Si samples are reported. A pulsed laser is used to generate surface acoustic waves in a sample and the wave velocity is measured using a knife-edge detection method. From the velocity of the surface waves the elastic modulus can be calculated.[1] Extension of this work to thin films is discusssed.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 356: Symposium B2 – Thin Films: Stresses and Mechanical Properties V , 1994 , 561
Copyright
Copyright © Materials Research Society 1995

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