Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/15653
Title: Dielectric characteristics and polarization response of lead-free ferroelectric (Bi0.5Na0.5)0.94Ba 0.06TiO3-P(VDF-TrFE) 0-3 composites
Authors: Wang, XX
Lam, KH
Tang, XG
Chan, HLW 
Keywords: Ferroelectricity
Dielectric response
Phase transitions
Issue Date: 2004
Publisher: Pergamon Press
Source: Solid state communications, 2004, v. 130, no. 10, p. 695-699 How to cite?
Journal: Solid state communications 
Abstract: Bismuth sodium barium titanate/poly(vinylidene fluoride-trifluoroethylene) 70/30 [(Bi0.5Na0.5)0.94Ba 0.06TiO3-P(VDF-TrFE)] 0-3 composites were prepared by a hot-press method for different volume fractions of (Bi0.5Na 0.5)0.94Ba0.06TiO3 ceramic powder in a P(VDF-TrFE) 70/30 copolymer matrix. The relative permittivity and dielectric loss of the composites increased with increase in the volume fraction of the ceramics, which well follows the Bruggeman model. The polarization responses of the composites were strongly dependent on the ceramic volume fraction. The composites with a higher ceramic volume fraction showed an increase in remanent polarization. At room temperature, a 0.3(Bi0.5Na0.5) 0.94Ba0.06TiO3-0.7P(VDF-TrFE) composite showed a relative permittivity εr = 30, remanent polarization P r = 12μC/cm2 and coercive field Ec = 44kV/mm.
URI: http://hdl.handle.net/10397/15653
ISSN: 0038-1098
EISSN: 1879-2766
DOI: 10.1016/j.ssc.2004.03.020
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