Enhanced electromechanical properties and conduction behaviors of Aurivillius Bi4Ti2.95(B1/3Nb2/3)0.05O12 (B=Mg, Zn, Cu) ceramics

Yuwei Zhao; Huiqing Fan; Guangzhi Dong; Zhiyong Liu

doi:10.1016/j.matlet.2016.03.130

Enhanced electromechanical properties and conduction behaviors of Aurivillius Bi₄Ti_2.95(B_1/3Nb_2/3)_0.05O₁₂ (B=Mg, Zn, Cu) ceramics

Yuwei Zhao, Huiqing Fan, Guangzhi Dong, Zhiyong Liu

School of Materials Sience and Engineering

Northwestern Polytechnical University Xian

Research output: Contribution to journal › Article › peer-review

34 Scopus citations

Abstract

(B_1/3/Nb_2/3) (B=Mg, Zn, Cu) co-substituting for Ti⁴⁺ in B-site of Bi₄Ti₃O₁₂-based Aurivillius ceramics were prepared to improve the piezoelectric properties. The electrical properties and conduction mechanisms of them were investigated. The activation energy related with the electrical relaxation determined from the electric modulus spectra was 0.71 eV and the electrical conductivity decreased dramatically by (Mg_1/3/Nb_2/3)-doping, due to the enhanced structural distortion and the decrease in oxygen vacancy concentration. The (Mg_1/3/Nb_2/3)-substituted specimen with a Curie point of 686 °C and a large field-induced strain of 0.061% as well as a higher remnant polarization of 12.9 μC/cm² could be a promising material for high-temperature lead-free piezoelectric applications.

Original language	English
Pages (from-to)	242-245
Number of pages	4
Journal	Materials Letters
Volume	174
DOIs	https://doi.org/10.1016/j.matlet.2016.03.130
State	Published - 1 Jul 2016

Keywords

Aurivillius ceramics
Conductivity
Electromechanical properties
Structure

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10.1016/j.matlet.2016.03.130

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title = "Enhanced electromechanical properties and conduction behaviors of Aurivillius Bi4Ti2.95(B1/3Nb2/3)0.05O12 (B=Mg, Zn, Cu) ceramics",

abstract = "(B1/3/Nb2/3) (B=Mg, Zn, Cu) co-substituting for Ti4+ in B-site of Bi4Ti3O12-based Aurivillius ceramics were prepared to improve the piezoelectric properties. The electrical properties and conduction mechanisms of them were investigated. The activation energy related with the electrical relaxation determined from the electric modulus spectra was 0.71 eV and the electrical conductivity decreased dramatically by (Mg1/3/Nb2/3)-doping, due to the enhanced structural distortion and the decrease in oxygen vacancy concentration. The (Mg1/3/Nb2/3)-substituted specimen with a Curie point of 686 °C and a large field-induced strain of 0.061% as well as a higher remnant polarization of 12.9 μC/cm2 could be a promising material for high-temperature lead-free piezoelectric applications.",

keywords = "Aurivillius ceramics, Conductivity, Electromechanical properties, Structure",

author = "Yuwei Zhao and Huiqing Fan and Guangzhi Dong and Zhiyong Liu",

year = "2016",

month = jul,

day = "1",

doi = "10.1016/j.matlet.2016.03.130",

language = "英语",

volume = "174",

pages = "242--245",

journal = "Materials Letters",

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publisher = "Elsevier B.V.",

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T1 - Enhanced electromechanical properties and conduction behaviors of Aurivillius Bi4Ti2.95(B1/3Nb2/3)0.05O12 (B=Mg, Zn, Cu) ceramics

AU - Zhao, Yuwei

AU - Fan, Huiqing

AU - Dong, Guangzhi

AU - Liu, Zhiyong

PY - 2016/7/1

Y1 - 2016/7/1

N2 - (B1/3/Nb2/3) (B=Mg, Zn, Cu) co-substituting for Ti4+ in B-site of Bi4Ti3O12-based Aurivillius ceramics were prepared to improve the piezoelectric properties. The electrical properties and conduction mechanisms of them were investigated. The activation energy related with the electrical relaxation determined from the electric modulus spectra was 0.71 eV and the electrical conductivity decreased dramatically by (Mg1/3/Nb2/3)-doping, due to the enhanced structural distortion and the decrease in oxygen vacancy concentration. The (Mg1/3/Nb2/3)-substituted specimen with a Curie point of 686 °C and a large field-induced strain of 0.061% as well as a higher remnant polarization of 12.9 μC/cm2 could be a promising material for high-temperature lead-free piezoelectric applications.

AB - (B1/3/Nb2/3) (B=Mg, Zn, Cu) co-substituting for Ti4+ in B-site of Bi4Ti3O12-based Aurivillius ceramics were prepared to improve the piezoelectric properties. The electrical properties and conduction mechanisms of them were investigated. The activation energy related with the electrical relaxation determined from the electric modulus spectra was 0.71 eV and the electrical conductivity decreased dramatically by (Mg1/3/Nb2/3)-doping, due to the enhanced structural distortion and the decrease in oxygen vacancy concentration. The (Mg1/3/Nb2/3)-substituted specimen with a Curie point of 686 °C and a large field-induced strain of 0.061% as well as a higher remnant polarization of 12.9 μC/cm2 could be a promising material for high-temperature lead-free piezoelectric applications.

KW - Aurivillius ceramics

KW - Conductivity

KW - Electromechanical properties

KW - Structure

UR - http://www.scopus.com/inward/record.url?scp=84962013870&partnerID=8YFLogxK

U2 - 10.1016/j.matlet.2016.03.130

DO - 10.1016/j.matlet.2016.03.130

M3 - 文章

AN - SCOPUS:84962013870

SN - 0167-577X

VL - 174

SP - 242

EP - 245

JO - Materials Letters

JF - Materials Letters

ER -

Enhanced electromechanical properties and conduction behaviors of Aurivillius Bi₄Ti_2.95(B_1/3Nb_2/3)_0.05O₁₂ (B=Mg, Zn, Cu) ceramics

Abstract

Keywords

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