Title :
Dielectric breakdown of PZT ferroelectric ceramics
Author :
Li, Chang-Ze ; Zhang, Hong-Yu ; Chang, Yao-Chung ; Zhang, W.-P. ; Liu, Yanbing
Author_Institution :
Acad. Sinica, Beijing
Abstract :
The dielectric breakdown of the ferroelectric ceramics PZT 55/44 and PZT-8 were studied at room temperature. Two kinds of breakdown phenomena were observed. In one the sample cracks into several pieces after breakdown, and in the other one or more gaseous channels through the sample appear. The dielectric loss and conductivity of the samples as well as the relationship between the amplitude and duration of field imposed on the sample were measured. The dependence of these parameters on the breakdown mechanism was also studied
Keywords :
ceramics; dielectric losses; electric breakdown of solids; ferroelectric materials; lead compounds; PZT 55/44; PZT ferroelectric ceramics; PZT-8; PbZrO3TiO3; conductivity; cracking; dielectric breakdown; dielectric loss; gaseous channels; room temperature; Ceramics; Conductivity measurement; Dielectric breakdown; Dielectric loss measurement; Dielectric losses; Dielectric measurements; Electric breakdown; Ferroelectric materials; Loss measurement; Temperature;
Conference_Titel :
Properties and Applications of Dielectric Materials, 1988. Proceedings., Second International Conference on Properties and Applications of
Conference_Location :
Beijing
DOI :
10.1109/ICPADM.1988.38368
