Open AccessThe influence of the matrix electrical conductivity on the dc poling behaviors and the loss of 0-3 ferroelectric composites
Author(s) -
Yang Fu,
Zhang Duan-Ming,
Zengtong Deng,
Shenglin Jiang,
Jie Xu,
Shudan Li
Publication year - 2008
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.57.3840
Subject(s) - poling , materials science , ferroelectricity , composite material , conductivity , dielectric , epoxy , ceramic , electrical resistivity and conductivity , ferroelectric ceramics , composite number , polarization (electrochemistry) , ceramic matrix composite , electrical engineering , optoelectronics , chemistry , engineering
A dc poling model is developed for the 0-3 ferroelectric composite by employing Laplace equation, combined with certain boundary conditions and taken account of the initial conditions of the polymer/ferroelectric ceramic interfacial charges. Two kinds of 0-3 composites with different matrixes, namely the PZT/epoxy and PZT/P(VDF-TrFE) composites, were prepared. The influences of matrix electrical conductivity on the poling behaviors were studied experimentally and theoretically. The results showed that the experimental dates are fitted well with the theoretical resultswith increased electric conductivity of the matrix, the poling time is shortened, and the polarization of ferroelectric ceramic and the total electric properties of composites are improved.Howerer,the leakage current and dielectric loss are increased,too.