Crystal structure and enhanced electromechanical properties of Aurivillius ferroelectric ceramics, Bi4Ti3-x(Mg 1/3Nb2/3)xO12

Changbai Long; Huiqing Fan; Mengmeng Li; Guangzhi Dong; Qiang Li

doi:10.1016/j.scriptamat.2013.11.025

Crystal structure and enhanced electromechanical properties of Aurivillius ferroelectric ceramics, Bi₄Ti_3-x(Mg _1/3Nb_2/3)_xO₁₂

Changbai Long, Huiqing Fan, Mengmeng Li, Guangzhi Dong, Qiang Li

School of Materials Sience and Engineering

Northwestern Polytechnical University Xian

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

75 Scopus citations

Abstract

The effect of Mg²⁺/Nb⁵⁺ co-substitution at the B-site on the structures and electrical properties of modified Aurivillius ceramics, Bi₄Ti_3-x(Mg_1/3Nb_2/3) _xO₁₂, was investigated. Rietveld refinement suggested that Bi₄Ti_3-x(Mg_1/3Nb _2/3)_xO₁₂ crystallized in the orthorhombic space group B2cb at room temperature. A high remnant polarization of 15.5 μC cm^-2, a large field-induced strain of 0.068% and a high piezoelectric activity of 30 pC N^-1 were observed in Bi₄Ti _2.95(Mg_1/3Nb_2/3)_0.05O₁₂, with a Curie point of 685 C, due to an enhancement in structural distortion and a reduction in leakage current.

Original language	English
Pages (from-to)	70-73
Number of pages	4
Journal	Scripta Materialia
Volume	75
DOIs	https://doi.org/10.1016/j.scriptamat.2013.11.025
State	Published - 15 Mar 2014

Keywords

Aurivillius ferroelectric ceramics
BiTi(MgNb )O
Leakage current
Piezoelectricity
Rietveld refinement

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10.1016/j.scriptamat.2013.11.025

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title = "Crystal structure and enhanced electromechanical properties of Aurivillius ferroelectric ceramics, Bi4Ti3-x(Mg 1/3Nb2/3)xO12",

abstract = "The effect of Mg2+/Nb5+ co-substitution at the B-site on the structures and electrical properties of modified Aurivillius ceramics, Bi4Ti3-x(Mg1/3Nb2/3) xO12, was investigated. Rietveld refinement suggested that Bi4Ti3-x(Mg1/3Nb 2/3)xO12 crystallized in the orthorhombic space group B2cb at room temperature. A high remnant polarization of 15.5 μC cm-2, a large field-induced strain of 0.068% and a high piezoelectric activity of 30 pC N-1 were observed in Bi4Ti 2.95(Mg1/3Nb2/3)0.05O12, with a Curie point of 685 C, due to an enhancement in structural distortion and a reduction in leakage current.",

keywords = "Aurivillius ferroelectric ceramics, BiTi(MgNb )O, Leakage current, Piezoelectricity, Rietveld refinement",

author = "Changbai Long and Huiqing Fan and Mengmeng Li and Guangzhi Dong and Qiang Li",

year = "2014",

month = mar,

day = "15",

doi = "10.1016/j.scriptamat.2013.11.025",

language = "英语",

volume = "75",

pages = "70--73",

journal = "Scripta Materialia",

issn = "1359-6462",

publisher = "Acta Materialia Inc",

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TY - JOUR

T1 - Crystal structure and enhanced electromechanical properties of Aurivillius ferroelectric ceramics, Bi4Ti3-x(Mg 1/3Nb2/3)xO12

AU - Long, Changbai

AU - Fan, Huiqing

AU - Li, Mengmeng

AU - Dong, Guangzhi

AU - Li, Qiang

PY - 2014/3/15

Y1 - 2014/3/15

N2 - The effect of Mg2+/Nb5+ co-substitution at the B-site on the structures and electrical properties of modified Aurivillius ceramics, Bi4Ti3-x(Mg1/3Nb2/3) xO12, was investigated. Rietveld refinement suggested that Bi4Ti3-x(Mg1/3Nb 2/3)xO12 crystallized in the orthorhombic space group B2cb at room temperature. A high remnant polarization of 15.5 μC cm-2, a large field-induced strain of 0.068% and a high piezoelectric activity of 30 pC N-1 were observed in Bi4Ti 2.95(Mg1/3Nb2/3)0.05O12, with a Curie point of 685 C, due to an enhancement in structural distortion and a reduction in leakage current.

AB - The effect of Mg2+/Nb5+ co-substitution at the B-site on the structures and electrical properties of modified Aurivillius ceramics, Bi4Ti3-x(Mg1/3Nb2/3) xO12, was investigated. Rietveld refinement suggested that Bi4Ti3-x(Mg1/3Nb 2/3)xO12 crystallized in the orthorhombic space group B2cb at room temperature. A high remnant polarization of 15.5 μC cm-2, a large field-induced strain of 0.068% and a high piezoelectric activity of 30 pC N-1 were observed in Bi4Ti 2.95(Mg1/3Nb2/3)0.05O12, with a Curie point of 685 C, due to an enhancement in structural distortion and a reduction in leakage current.

KW - Aurivillius ferroelectric ceramics

KW - BiTi(MgNb )O

KW - Leakage current

KW - Piezoelectricity

KW - Rietveld refinement

UR - http://www.scopus.com/inward/record.url?scp=84892366322&partnerID=8YFLogxK

U2 - 10.1016/j.scriptamat.2013.11.025

DO - 10.1016/j.scriptamat.2013.11.025

M3 - 文章

AN - SCOPUS:84892366322

SN - 1359-6462

VL - 75

SP - 70

EP - 73

JO - Scripta Materialia

JF - Scripta Materialia

ER -

Crystal structure and enhanced electromechanical properties of Aurivillius ferroelectric ceramics, Bi₄Ti_3-x(Mg _1/3Nb_2/3)_xO₁₂

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Keywords

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