Title :
Optimization of poling process for piezoelectric PZT ceramics
Author :
Wang, Hong-wen ; Cheng, Syh-yuh ; Wang, Chien-Min
Author_Institution :
Ind. Technol. Res. Inst., Chutung, Taiwan
Abstract :
The properties of piezoelectric ceramics are dependent on the poling conditions. To describe the optimal poling conditions, the threshold voltage, Vth, and Tth, required to achieve 90% of maximum Kp (planar coupling factor) value are defined. In the case of (Pb1-xSr x) [(Zr0.52Ti0.48)0.975Nb 0.025]O3 ceramics, decreases of both V th and Tth with increasing x value are found. These can be related to variations of polarization and coercive field and finally to the variation of domain rotation. A selection rule for the optimal poling conditions based on this hypothesis is derived
Keywords :
ceramics; coercive force; dielectric polarisation; lead compounds; piezoelectric materials; (Pb1-xSrx)[(Zr0.52Ti0.48 )0.975Nb0.025]O3; PZT; PbZrO3TiO3; coercive field; domain rotation; optimal poling conditions; piezoelectric ceramics; planar coupling factor; polarization; poling process; threshold voltage; Ceramics; Crystallization; Lattices; Petroleum; Piezoelectric polarization; Resonance; Silicon; Strontium; Temperature; Threshold voltage;
Conference_Titel :
Electronic Manufacturing Technology Symposium, 1989, Proceedings. Japan IEMT Symposium, Sixth IEEE/CHMT International
Conference_Location :
Nara
DOI :
10.1109/IEMTS.1989.76153
