Title :
Thermal polarization mechanisms on 0-3 type ferroelectric composites based on PVDF
Author :
Xuexiong, Huang ; Yangzi, Xu ; Jingde, Li
Author_Institution :
Dept. of Phys., Hubei Normal Univ., Huangshi, China
Abstract :
The 0-3 type composites of TGS, BaTiO3 and LiNbO3 crystal, BaTiO3 and PZT ceramics based on PVDF have been prepared. The long term polarization relaxation in the composites been studied. This indicates that there are three mechanisms with different relaxation times. These mechanisms result from crystalline grains of the crystal or ceramics, matrix and grain boundaries. The stable polarization results from the grain boundaries
Keywords :
barium compounds; ceramics; dielectric polarisation; dielectric relaxation; ferroelectric materials; filled polymers; grain boundaries; lead compounds; lithium compounds; organic compounds; piezoceramics; thermally stimulated currents; BaTiO3; LiNbO3; PVDF; PZT; PbZrO3TiO3; ceramics; crystalline grains; crystals; ferroelectric composites; grain boundaries; polarization relaxation; relaxation times; Ceramics; Crystallization; Dielectrics; Ferroelectric materials; Grain boundaries; Physics; Polarization; Polymers; Pyroelectricity; Voltage;
Conference_Titel :
Electrets, 1994. (ISE 8), 8th International Symposium on
Conference_Location :
Paris
Print_ISBN :
0-7803-1940-0
DOI :
10.1109/ISE.1994.515224
