Full Tensorial characterization of PZN-12%PT single crystal by resonant ultrasound spectroscopy.
An experimental setup based on the electrical excitation of a piezoelectric sample is proposed for resonant ultrasound spectroscopy measurements. The detection of the mechanical vibrations is performed by means of a laser interferometer. At the same time, the free vibrations of piezoelectric parallelepipeds of tetragonal and hexagonal symmetries are modeled taking into account the effect of the sample metalization. The paper presents the full elastic, piezoelectric and dielectric tensors of two PMN-34.5%PT ceramic and PZN-12%PT single crystal cubes.
Delaunay
Thomas
T
Université François Rabelais de Tours, ENI Val de Loire, Laboratoire UltraSons Signaux et Instrumentation, FRE 2448 CNRS, Rue de la Chocolaterie, BP3410, 41034 Blois cedex, France.
Clezio
Emmanuel L
EL
Guennou
Mael
M
Dammak
Hichem
H
Thi
Mai Pham
MP
Feuillard
Guy
G