Title :
AE measurement in ferroelectrics
Author :
Arai, Mikako ; Sugawara, Yutaka ; Uchino, Kenji
Author_Institution :
Dept. of Phys., Sophia Univ., Tokyo, Japan
Abstract :
Acoustic emission was intensively measured in PLZT ferroelectric ceramics. The difference between the data observed for the rhombohedral- and tetragonal-phase samples is stressed. The rhombohedral-phase sample was found to exhibit larger acoustic emission both in number and in level than the tetragonal-phase sample. This difference can be explained by considering the domain reversal mechanisms
Keywords :
acoustic emission; ceramics; electric domains; ferroelectric materials; lanthanum compounds; lead compounds; AE measurement; PLZT; PbLaZrO3TiO3; domain reversal mechanisms; ferroelectric ceramics; rhombohedral-phase sample; tetragonal-phase samples; Acoustic emission; Acoustic measurements; Acoustic pulses; Capacitive sensors; Ceramics; Ferroelectric materials; Gas detectors; Magnetic field induced strain; Magnetic field measurement; Strain measurement;
Conference_Titel :
Ultrasonics Symposium, 1990. Proceedings., IEEE 1990
Conference_Location :
Honolulu, HI
DOI :
10.1109/ULTSYM.1990.171551
