Open AccessElectrical properties of (Bi05Na05)TiO3 ceramic prepared by sol-gel method
Author(s) -
Zhao Ming-Lei,
Chunlei Wang,
W. L. Zhong,
Jinfeng Wang,
Hong-Cun Chen
Publication year - 2003
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.52.229
Subject(s) - materials science , ceramic , sol gel , piezoelectricity , bismuth titanate , bismuth , composite material , fabrication , coercivity , hysteresis , electric field , ferroelectricity , dielectric , nanotechnology , optoelectronics , metallurgy , condensed matter physics , medicine , alternative medicine , physics , pathology , quantum mechanics
Bismuth sodium titanate Bi05Na05TiO3 ceramic with about 96% of theoretical density was prepared by sol-gel processing. The saturate P-E hysteresis loop can be obtained under a 100kV/cm AC electric field for the sol-gel processed Bi05Na05TiO3 ceramic and the remanent polarization Pr and coercive field Ec are 32μC/cm2 and 61kV/cm respectively. Moreover, from the piezoelectric measurements, this material fabricated by sol-gel processing was found to have increased piezoelectric constant d33=102×10-12C/N and electromechanical coupling factor kt=58%. Therefore, sol-gel method is a potential fabrication technique for this lead-free piezoelectric ceramic.