Dielectric characteristics and polarization response of lead-free ferroelectric (Bi0.5Na0.5)0.94Ba 0.06TiO3-P(VDF-TrFE) 0-3 composites

X. X. Wang; Kwok Ho Lam; X. G. Tang; H. L W Chan

doi:10.1016/j.ssc.2004.03.020

Dielectric characteristics and polarization response of lead-free ferroelectric (Bi0.5Na0.5)0.94Ba 0.06TiO3-P(VDF-TrFE) 0-3 composites

X. X. Wang, Kwok Ho Lam, X. G. Tang, H. L W Chan

The Hong Kong Polytechnic University

Research output: Journal article publication › Journal article › Academic research › peer-review

52 Citations (Scopus)

Abstract

Bismuth sodium barium titanate/poly(vinylidene fluoride-trifluoroethylene) 70/30 [(Bi0.5Na0.5)0.94Ba0.06TiO3-P(VDF-TrFE)] 0-3 composites were prepared by a hot-press method for different volume fractions of (Bi0.5Na0.5)0.94Ba0.06TiO3ceramic 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 Pr= 12μC/cm2and coercive field Ec= 44kV/mm.

Original language	English
Pages (from-to)	695-699
Number of pages	5
Journal	Solid State Communications
Volume	130
Issue number	10
DOIs	https://doi.org/10.1016/j.ssc.2004.03.020
Publication status	Published - 1 Jun 2004

Keywords

A. Ferroelectricity
D. Dielectric response
D. Phase transitions

ASJC Scopus subject areas

General Materials Science
Condensed Matter Physics

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10.1016/j.ssc.2004.03.020

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title = "Dielectric characteristics and polarization response of lead-free ferroelectric (Bi0.5Na0.5)0.94Ba 0.06TiO3-P(VDF-TrFE) 0-3 composites",

abstract = "Bismuth sodium barium titanate/poly(vinylidene fluoride-trifluoroethylene) 70/30 [(Bi0.5Na0.5)0.94Ba0.06TiO3-P(VDF-TrFE)] 0-3 composites were prepared by a hot-press method for different volume fractions of (Bi0.5Na0.5)0.94Ba0.06TiO3ceramic 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 Pr= 12μC/cm2and coercive field Ec= 44kV/mm.",

keywords = "A. Ferroelectricity, D. Dielectric response, D. Phase transitions",

author = "Wang, {X. X.} and Lam, {Kwok Ho} and Tang, {X. G.} and Chan, {H. L W}",

year = "2004",

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T1 - Dielectric characteristics and polarization response of lead-free ferroelectric (Bi0.5Na0.5)0.94Ba 0.06TiO3-P(VDF-TrFE) 0-3 composites

AU - Wang, X. X.

AU - Lam, Kwok Ho

AU - Tang, X. G.

AU - Chan, H. L W

PY - 2004/6/1

Y1 - 2004/6/1

N2 - Bismuth sodium barium titanate/poly(vinylidene fluoride-trifluoroethylene) 70/30 [(Bi0.5Na0.5)0.94Ba0.06TiO3-P(VDF-TrFE)] 0-3 composites were prepared by a hot-press method for different volume fractions of (Bi0.5Na0.5)0.94Ba0.06TiO3ceramic 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 Pr= 12μC/cm2and coercive field Ec= 44kV/mm.

AB - Bismuth sodium barium titanate/poly(vinylidene fluoride-trifluoroethylene) 70/30 [(Bi0.5Na0.5)0.94Ba0.06TiO3-P(VDF-TrFE)] 0-3 composites were prepared by a hot-press method for different volume fractions of (Bi0.5Na0.5)0.94Ba0.06TiO3ceramic 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 Pr= 12μC/cm2and coercive field Ec= 44kV/mm.

KW - A. Ferroelectricity

KW - D. Dielectric response

KW - D. Phase transitions

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U2 - 10.1016/j.ssc.2004.03.020

DO - 10.1016/j.ssc.2004.03.020

M3 - Journal article

SN - 0038-1098

VL - 130

SP - 695

EP - 699

JO - Solid State Communications

JF - Solid State Communications

IS - 10

ER -

Dielectric characteristics and polarization response of lead-free ferroelectric (Bi0.5Na0.5)0.94Ba 0.06TiO3-P(VDF-TrFE) 0-3 composites

Abstract

Keywords

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