Title :
Electro-mechanical characteristics of lead-zirconate-titanate ceramics under vibration-level change
Author :
Takahashi, Sadayuki ; Hirose, Seiji ; Uchino, Kenji ; Oh, Ki-Young
Author_Institution :
NEC Corp., Kawasaki, Japan
Abstract :
Electro-mechanical characteristics by changing the vibration-level were studied in lead-zirconate-titanate (PZT) based ceramics using the constant current/velocity driving method. The fractional changes of Young´s modulus and mechanical dissipation factor are a function of the square of the effective vibration velocity. The increase of the dissipated-vibration-energy with the vibration-level change causes heat generation. Ferroelectric hysteresis loss is assumed to affect the dissipated-vibration-energy through the mechanical dissipation factor
Keywords :
Young´s modulus; dielectric hysteresis; electromechanical effects; ferroelectric materials; lead compounds; piezoceramics; vibrations; PZT; PbZrO3TiO3; Young´s modulus; constant current/velocity driving method; dissipated-vibration-energy; effective vibration velocity; electro-mechanical characteristics; ferroelectric hysteresis loss; fractional changes; heat generation; lead-zirconate-titanate ceramics; mechanical dissipation factor; vibration-level change; Ceramics; Ferroelectric materials; Hysteresis; National electric code; Optical sensors; Piezoelectric devices; Stability; Temperature sensors; Titanium compounds; Vibration measurement;
Conference_Titel :
Applications of Ferroelectrics, 1994.ISAF '94., Proceedings of the Ninth IEEE International Symposium on
Conference_Location :
University Park, PA
Print_ISBN :
0-7803-1847-1
DOI :
10.1109/ISAF.1994.522381
