Thermal hysteresis in the permittivity and polarization of lead zirconate titanate/vinylidenefluoride-trifluoroethylene 0-3 composites

Author

Chan, H.L.W. ; Chen, Y. ; Choy, C.L.

Author_Institution

Dept. of Appl. Phys., Hong Kong Polytech., Hung Hom, Hong Kong

Volume

3

Issue

6

fYear

1996

fDate

12/1/1996 12:00:00 AM

Firstpage

800

Lastpage

805

Abstract

The permittivities of 70/30 vinylidene fluoride-trifluoroethylene copolymer and lead zirconate titanate/vinylidene fluoride-trifluoroethylene 0-3 composites have been measured at 1 kHz over the temperature range of 20 to 120°C. Thermal hysteresis was observed for the 0-3 composites and abrupt changes in the permittivities occurred at different temperatures upon heating and cooling. Good agreement was found between the measured permittivities and the predictions of the Bruggeman model. Implications of the thermal hysteresis behavior on the poling of 0-3 composites are also discussed

Keywords

composite materials; dielectric hysteresis; dielectric polarisation; lead compounds; permittivity; piezoceramics; polymer blends; 1 kHz; 20 to 120 C; Bruggeman model; PZT; PbZrO3TiO3; lead zirconate titanate/vinylidenefluoride-trifluoroethylene 0-3 composite; permittivity; polarization; thermal hysteresis; vinylidene fluoride-trifluoroethylene copolymer; Ceramics; Conductivity; Dielectric losses; Hysteresis; Permittivity measurement; Physics; Piezoelectric polarization; Polymers; Temperature; Titanium compounds;

fLanguage

English

Journal_Title

Dielectrics and Electrical Insulation, IEEE Transactions on

Publisher

ieee

ISSN

1070-9878

Type

jour

DOI

10.1109/94.556562

Filename

556562