Giant field-induced strain in Nb2O5-modified (Bi0.5Na0.5)0.94Ba0.06TiO3 lead-free ceramics

Qiang Li; Shang Gao; Li Ning; Huiqing Fan; Zhiyong Liu; Zhuo Li

doi:10.1016/j.ceramint.2017.01.084

Giant field-induced strain in Nb₂O₅-modified (Bi_0.5Na_0.5)_0.94Ba_0.06TiO₃ lead-free ceramics

Qiang Li, Shang Gao, Li Ning, Huiqing Fan, Zhiyong Liu, Zhuo Li

School of Materials Sience and Engineering

Research output: Contribution to journal › Review article › peer-review

32 Scopus citations

Abstract

Lead-free piezoceramics (Na_(1+x)/2Bi_(1-x)/2)_0.94Ba_0.06Ti_1-xNb_xO₃ (BTN100x) were prepared using conventional solid-state reaction method. The structures, field- induced strain, AC impedance of sintered ceramics were investigated. The pure perovskite solid solution BTN3 exhibited giant electric-field-induced strain of 0.478% under an electric field of 70 kV/cm at ambient temperature, meanwhile, the normalized strain (S_max/E_max) reached up to 654 pm/V. The giant strain was insensitive to temperature and exhibited excellent fatigue resistance performance within 10⁶ switching cycles, making it a promising candidate material for actuator applications. Complex AC impedance spectra confirmed the contribution of grain effect to resistivity behavior. The field-induced giant strain was attributed to the phase transition between ferroelectrics and relaxor ferroelectrics induced by introducing Nb₂O₅.

Original language	English
Pages (from-to)	5367-5373
Number of pages	7
Journal	Ceramics International
Volume	43
Issue number	7
DOIs	https://doi.org/10.1016/j.ceramint.2017.01.084
State	Published - 1 May 2017

Keywords

A. Powders: solid phase reaction
C. Fatigue
D. Perovskites
Giant strain

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10.1016/j.ceramint.2017.01.084

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title = "Giant field-induced strain in Nb2O5-modified (Bi0.5Na0.5)0.94Ba0.06TiO3 lead-free ceramics",

abstract = "Lead-free piezoceramics (Na(1+x)/2Bi(1-x)/2)0.94Ba0.06Ti1-xNbxO3 (BTN100x) were prepared using conventional solid-state reaction method. The structures, field- induced strain, AC impedance of sintered ceramics were investigated. The pure perovskite solid solution BTN3 exhibited giant electric-field-induced strain of 0.478% under an electric field of 70 kV/cm at ambient temperature, meanwhile, the normalized strain (Smax/Emax) reached up to 654 pm/V. The giant strain was insensitive to temperature and exhibited excellent fatigue resistance performance within 106 switching cycles, making it a promising candidate material for actuator applications. Complex AC impedance spectra confirmed the contribution of grain effect to resistivity behavior. The field-induced giant strain was attributed to the phase transition between ferroelectrics and relaxor ferroelectrics induced by introducing Nb2O5.",

keywords = "A. Powders: solid phase reaction, C. Fatigue, D. Perovskites, Giant strain",

author = "Qiang Li and Shang Gao and Li Ning and Huiqing Fan and Zhiyong Liu and Zhuo Li",

note = "Publisher Copyright: {\textcopyright} 2017 Elsevier Ltd and Techna Group S.r.l.",

year = "2017",

month = may,

day = "1",

doi = "10.1016/j.ceramint.2017.01.084",

language = "英语",

volume = "43",

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TY - JOUR

T1 - Giant field-induced strain in Nb2O5-modified (Bi0.5Na0.5)0.94Ba0.06TiO3 lead-free ceramics

AU - Li, Qiang

AU - Gao, Shang

AU - Ning, Li

AU - Fan, Huiqing

AU - Liu, Zhiyong

AU - Li, Zhuo

PY - 2017/5/1

Y1 - 2017/5/1

N2 - Lead-free piezoceramics (Na(1+x)/2Bi(1-x)/2)0.94Ba0.06Ti1-xNbxO3 (BTN100x) were prepared using conventional solid-state reaction method. The structures, field- induced strain, AC impedance of sintered ceramics were investigated. The pure perovskite solid solution BTN3 exhibited giant electric-field-induced strain of 0.478% under an electric field of 70 kV/cm at ambient temperature, meanwhile, the normalized strain (Smax/Emax) reached up to 654 pm/V. The giant strain was insensitive to temperature and exhibited excellent fatigue resistance performance within 106 switching cycles, making it a promising candidate material for actuator applications. Complex AC impedance spectra confirmed the contribution of grain effect to resistivity behavior. The field-induced giant strain was attributed to the phase transition between ferroelectrics and relaxor ferroelectrics induced by introducing Nb2O5.

AB - Lead-free piezoceramics (Na(1+x)/2Bi(1-x)/2)0.94Ba0.06Ti1-xNbxO3 (BTN100x) were prepared using conventional solid-state reaction method. The structures, field- induced strain, AC impedance of sintered ceramics were investigated. The pure perovskite solid solution BTN3 exhibited giant electric-field-induced strain of 0.478% under an electric field of 70 kV/cm at ambient temperature, meanwhile, the normalized strain (Smax/Emax) reached up to 654 pm/V. The giant strain was insensitive to temperature and exhibited excellent fatigue resistance performance within 106 switching cycles, making it a promising candidate material for actuator applications. Complex AC impedance spectra confirmed the contribution of grain effect to resistivity behavior. The field-induced giant strain was attributed to the phase transition between ferroelectrics and relaxor ferroelectrics induced by introducing Nb2O5.

KW - A. Powders: solid phase reaction

KW - C. Fatigue

KW - D. Perovskites

KW - Giant strain

UR - http://www.scopus.com/inward/record.url?scp=85009730066&partnerID=8YFLogxK

U2 - 10.1016/j.ceramint.2017.01.084

DO - 10.1016/j.ceramint.2017.01.084

M3 - 文献综述

AN - SCOPUS:85009730066

SN - 0272-8842

VL - 43

SP - 5367

EP - 5373

JO - Ceramics International

JF - Ceramics International

IS - 7

ER -

Giant field-induced strain in Nb₂O₅-modified (Bi_0.5Na_0.5)_0.94Ba_0.06TiO₃ lead-free ceramics

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Keywords

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