On the determination of the piezoelectric shear coefficient,d15, in a PZT ceramic

Autor: Manfred Kahn, David Lewis, R. P. Ingel
Rok vydání: 1990
Předmět:
Zdroj: Ferroelectrics. 102:225-234
ISSN: 1563-5112
0015-0193
DOI: 10.1080/00150199008221482
Popis: The polarization obtained in the direction of an arbitrary uniaxial stress is derived by applying tensor transformations to the polarization-stress relation: Pi , = dijkσjk . Two- and three-dimensional plots of the results are shown. The experimental work described includes the preparation of discs poled uniformly at 90° to their thickness and the measurement of d 333 as a function of orientation. Very good agreement with the calculated results was obtained. The effect of electrodes on the measurement of d 333 (d 33) and the use of a d 311 (d 31) parameter measurement to permit a d 113 (d 15) determination are also demonstrated. The d 333 measurements as a function of stress orientation permitted determination of the d 15 value with a resolution of ±8%. Its average value was within 5% of d 15 values derived from other techniques.
Databáze: OpenAIRE