Open AccessLOW FREQUENCY DIELECTRIC PROPERTIES OF PZT-8 FERROELECTRIC PIEZOELECTRIC CERAMICS
Author(s) -
Zhang Wei-Pin,
Li Chong-Zhou
Publication year - 1982
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.31.247
Subject(s) - materials science , dielectric , lead zirconate titanate , ferroelectricity , ceramic , dielectric loss , piezoelectricity , ferroelectric ceramics , relaxation (psychology) , crystallite , composite material , condensed matter physics , optoelectronics , psychology , social psychology , metallurgy , physics
This article presents results of our studies on PZT-8 polycrystalline ferroelectric ceramics of lead zirconate titanate. We have measured the dielectric constant and dielectric loss over a low frequency range (from . 100kHz-20MHz) and temperature range from room temperature to 500℃. The mechanism of dielectric loss, the relaxation process and the impurity effects are discussed. The main loss above Tc is attributed to conducting loss.We also propose some suggestions for improving electrical properties of PZT-8 ferroelectric ceramics.