Electromechanical properties and dielectric behavior of (Bi1/2Na1/2)(1-1.5x)BixTiO3lead-free piezoelectric ceramics

X. X. Wang; Kin Wing Kwok; X. G. Tang; H. L.W. Chan; C. L. Choy

doi:10.1016/j.ssc.2003.10.017

Electromechanical properties and dielectric behavior of (Bi_1/2Na_1/2)_(1-1.5x)Bi_xTiO₃lead-free piezoelectric ceramics

X. X. Wang, Kin Wing Kwok, X. G. Tang, H. L.W. Chan, C. L. Choy

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

88 Citations (Scopus)

Abstract

Bismuth doped bismuth sodium titanate ceramics [(Bi1/2Na1/2)(1-1.5x)BixTiO3, x = 0 to 0.06] were prepared, and the resulting effects on the microstructure and dielectric properties were examined. All of the Bi-doped ceramics exhibited a single phase of perovskite structure with rhombohedral symmetry. The poling leakage current was significantly reduced by the doping of Bi, facilitating the poling process of the ceramics. The doping with Bi enhances the piezoelectric properties and increases the dielectric constant and the dielectric loss of the ceramics. At 2 mol% Bi-doping level, the ceramics exhibit a large remanent polarization of 47 μC/cm2and a relatively low coercive field of 71 kV/cm, while their d33and kpreach a maximum value of 95 pC/N and 21%, respectively.

Original language	English
Pages (from-to)	319-323
Number of pages	5
Journal	Solid State Communications
Volume	129
Issue number	5
DOIs	https://doi.org/10.1016/j.ssc.2003.10.017
Publication status	Published - 1 Feb 2004

Keywords

A. Ferroelectrics
D. Dielectric response
D. Piezoelectricity

ASJC Scopus subject areas

General Chemistry
Condensed Matter Physics
Materials Chemistry

More information

10.1016/j.ssc.2003.10.017

Cite this

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title = "Electromechanical properties and dielectric behavior of (Bi1/2Na1/2)(1-1.5x)BixTiO3lead-free piezoelectric ceramics",

abstract = "Bismuth doped bismuth sodium titanate ceramics [(Bi1/2Na1/2)(1-1.5x)BixTiO3, x = 0 to 0.06] were prepared, and the resulting effects on the microstructure and dielectric properties were examined. All of the Bi-doped ceramics exhibited a single phase of perovskite structure with rhombohedral symmetry. The poling leakage current was significantly reduced by the doping of Bi, facilitating the poling process of the ceramics. The doping with Bi enhances the piezoelectric properties and increases the dielectric constant and the dielectric loss of the ceramics. At 2 mol% Bi-doping level, the ceramics exhibit a large remanent polarization of 47 μC/cm2and a relatively low coercive field of 71 kV/cm, while their d33and kpreach a maximum value of 95 pC/N and 21%, respectively.",

keywords = "A. Ferroelectrics, D. Dielectric response, D. Piezoelectricity",

author = "Wang, {X. X.} and Kwok, {Kin Wing} and Tang, {X. G.} and Chan, {H. L.W.} and Choy, {C. L.}",

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T1 - Electromechanical properties and dielectric behavior of (Bi1/2Na1/2)(1-1.5x)BixTiO3lead-free piezoelectric ceramics

AU - Wang, X. X.

AU - Kwok, Kin Wing

AU - Tang, X. G.

AU - Chan, H. L.W.

AU - Choy, C. L.

PY - 2004/2/1

Y1 - 2004/2/1

N2 - Bismuth doped bismuth sodium titanate ceramics [(Bi1/2Na1/2)(1-1.5x)BixTiO3, x = 0 to 0.06] were prepared, and the resulting effects on the microstructure and dielectric properties were examined. All of the Bi-doped ceramics exhibited a single phase of perovskite structure with rhombohedral symmetry. The poling leakage current was significantly reduced by the doping of Bi, facilitating the poling process of the ceramics. The doping with Bi enhances the piezoelectric properties and increases the dielectric constant and the dielectric loss of the ceramics. At 2 mol% Bi-doping level, the ceramics exhibit a large remanent polarization of 47 μC/cm2and a relatively low coercive field of 71 kV/cm, while their d33and kpreach a maximum value of 95 pC/N and 21%, respectively.

AB - Bismuth doped bismuth sodium titanate ceramics [(Bi1/2Na1/2)(1-1.5x)BixTiO3, x = 0 to 0.06] were prepared, and the resulting effects on the microstructure and dielectric properties were examined. All of the Bi-doped ceramics exhibited a single phase of perovskite structure with rhombohedral symmetry. The poling leakage current was significantly reduced by the doping of Bi, facilitating the poling process of the ceramics. The doping with Bi enhances the piezoelectric properties and increases the dielectric constant and the dielectric loss of the ceramics. At 2 mol% Bi-doping level, the ceramics exhibit a large remanent polarization of 47 μC/cm2and a relatively low coercive field of 71 kV/cm, while their d33and kpreach a maximum value of 95 pC/N and 21%, respectively.

KW - A. Ferroelectrics

KW - D. Dielectric response

KW - D. Piezoelectricity

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DO - 10.1016/j.ssc.2003.10.017

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SP - 319

EP - 323

JO - Solid State Communications

JF - Solid State Communications

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