Determination of Some Complex Elastic and Electromechanical Properties of KDP

U. Straube; H. Beige

doi:doi:10.1051/jp4:1996895

Numéro		J. Phys. IV France Volume 06, Numéro C8, Décembre 1996 ICIFUAS 11 Eleventh International Conference on Internal Friction and Ultrasonic Attenuation in Solids


Page(s)		C8-437 - C8-440
DOI		https://doi.org/10.1051/jp4:1996895

ICIFUAS 11
Eleventh International Conference on Internal Friction and Ultrasonic Attenuation in Solids

J. Phys. IV France 06 (1996) C8-437-C8-440
DOI: 10.1051/jp4:1996895

Determination of Some Complex Elastic and Electromechanical Properties of KDP

U. Straube and H. Beige

Martin-Luther-Universität Halle-Wittenberg, Fachbereich Physik, Friedemann-Bach-Pl. 6, 06108 Halle/Saale, Germany

Abstract
The described method allows the determination of velocity and attenuation variations introduced by low frequency alternating stresses and electric fields. Uniaxial stress is produced with a high load piezoelectric actuator and controlled with a strain gauge bridge. A modified impulse echo overlap system with a computer controlled sampling oscilloscope permits the measurement of very small effects. Results for Potassium Dihydrogen Phosphate (KDP) near the phase transition at 123 K are presented and discussed.