Elastic and Piezoelectric Constants of Ba2NaNb5O15

The elastic, piezoelectric, and dielectric constants of Ba2NaNb5O15 have been measured. The experimental techniques used involve mostly thickness-mode measurements made on small plate-shaped samples of various crystallographic orientations. As reported previously, the z-cut plate has a thickness lon...

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Bibliographic Details
Published in:Journal of applied physics 1969-10, Vol.40 (11), p.4353-4356
Main Authors: Warner, A. W., Coquin, G. A., Fink, J. L.
Format: Article
Language:English
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Summary:The elastic, piezoelectric, and dielectric constants of Ba2NaNb5O15 have been measured. The experimental techniques used involve mostly thickness-mode measurements made on small plate-shaped samples of various crystallographic orientations. As reported previously, the z-cut plate has a thickness longitudinal mode coupling factor of 0.57, which makes this material attractive for application as a high-frequency longitudinal mode transducer. However, from the measured constants and the theory of piezoelectric plate vibrations, it is determined that no crystallographic orientation other than the z-cut has properties suitable for ultrasonic transducer applications.
ISSN:0021-8979
1089-7550
DOI:10.1063/1.1657197