Electrical properties and relaxation behavior of Bi0.5Na0.5TiO3-BaTiO3 ceramics modified with NaNbO3

Qi Xu; Michael T. Lanagan; Wei Luo; Lin Zhang; Juan Xie; Hua Hao; Minghe Cao; Zhonghua Yao; Hanxing Liu

doi:10.1016/j.jeurceramsoc.2016.03.011

Electrical properties and relaxation behavior of Bi_0.5Na_0.5TiO₃-BaTiO₃ ceramics modified with NaNbO₃

Qi Xu, Michael T. Lanagan, Wei Luo, Lin Zhang, Juan Xie, Hua Hao, Minghe Cao, Zhonghua Yao, Hanxing Liu

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

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Abstract

Electric conduction and dielectric relaxation behavior in (1-x)(Bi_0.5Na_0.5TiO₃-BaTiO₃)-xNaNbO₃ ((1-x)(BNT-BT)-xNN) ceramics were investigated. All compositions showed negative temperature coefficient of resistance (NTCR) behavior. The bulk conductivity followed the Arrhenius law with E_a = 1.24-1.55 eV, which can be attributed to the electronic conduction. In the modulus (M''-f) spectra, a peak and a shoulder were observed, corresponding to the bulk and polar nano regions (PNRs) response respectively. With the increase of either temperature or NN content, the shoulder gradually depressed and even disappeared. A correlation between the PNRs evolution and the relaxation behavior was constructed.

Original language	English (US)
Pages (from-to)	2469-2477
Number of pages	9
Journal	Journal of the European Ceramic Society
Volume	36
Issue number	10
DOIs	https://doi.org/10.1016/j.jeurceramsoc.2016.03.011
State	Published - Aug 1 2016

All Science Journal Classification (ASJC) codes

Ceramics and Composites
Materials Chemistry

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10.1016/j.jeurceramsoc.2016.03.011

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@article{5a898631e4f04f7d89be259c81b1b35c,

title = "Electrical properties and relaxation behavior of Bi0.5Na0.5TiO3-BaTiO3 ceramics modified with NaNbO3 ",

abstract = "Electric conduction and dielectric relaxation behavior in (1-x)(Bi0.5Na0.5TiO3-BaTiO3)-xNaNbO3 ((1-x)(BNT-BT)-xNN) ceramics were investigated. All compositions showed negative temperature coefficient of resistance (NTCR) behavior. The bulk conductivity followed the Arrhenius law with Ea = 1.24-1.55 eV, which can be attributed to the electronic conduction. In the modulus (M''-f) spectra, a peak and a shoulder were observed, corresponding to the bulk and polar nano regions (PNRs) response respectively. With the increase of either temperature or NN content, the shoulder gradually depressed and even disappeared. A correlation between the PNRs evolution and the relaxation behavior was constructed.",

author = "Qi Xu and Lanagan, {Michael T.} and Wei Luo and Lin Zhang and Juan Xie and Hua Hao and Minghe Cao and Zhonghua Yao and Hanxing Liu",

note = "Funding Information: This work was supported by National Natural Science Foundation of China (No. 51372191 ), National Key Basic Research Program of China (973 Program) (No. 2015CB654601 ), International Science and Technology Cooperation Program of China ( 2011DFA52680 ), the Fundamental Research Funds for the Central Universities ( WUT:152401002 and 152410002 ). Publisher Copyright: {\textcopyright} 2016 Elsevier Ltd.",

year = "2016",

month = aug,

day = "1",

doi = "10.1016/j.jeurceramsoc.2016.03.011",

language = "English (US)",

volume = "36",

pages = "2469--2477",

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TY - JOUR

T1 - Electrical properties and relaxation behavior of Bi0.5Na0.5TiO3-BaTiO3 ceramics modified with NaNbO3

AU - Xu, Qi

AU - Lanagan, Michael T.

AU - Luo, Wei

AU - Zhang, Lin

AU - Xie, Juan

AU - Hao, Hua

AU - Cao, Minghe

AU - Yao, Zhonghua

AU - Liu, Hanxing

N1 - Funding Information: This work was supported by National Natural Science Foundation of China (No. 51372191 ), National Key Basic Research Program of China (973 Program) (No. 2015CB654601 ), International Science and Technology Cooperation Program of China ( 2011DFA52680 ), the Fundamental Research Funds for the Central Universities ( WUT:152401002 and 152410002 ). Publisher Copyright: © 2016 Elsevier Ltd.

PY - 2016/8/1

Y1 - 2016/8/1

N2 - Electric conduction and dielectric relaxation behavior in (1-x)(Bi0.5Na0.5TiO3-BaTiO3)-xNaNbO3 ((1-x)(BNT-BT)-xNN) ceramics were investigated. All compositions showed negative temperature coefficient of resistance (NTCR) behavior. The bulk conductivity followed the Arrhenius law with Ea = 1.24-1.55 eV, which can be attributed to the electronic conduction. In the modulus (M''-f) spectra, a peak and a shoulder were observed, corresponding to the bulk and polar nano regions (PNRs) response respectively. With the increase of either temperature or NN content, the shoulder gradually depressed and even disappeared. A correlation between the PNRs evolution and the relaxation behavior was constructed.

AB - Electric conduction and dielectric relaxation behavior in (1-x)(Bi0.5Na0.5TiO3-BaTiO3)-xNaNbO3 ((1-x)(BNT-BT)-xNN) ceramics were investigated. All compositions showed negative temperature coefficient of resistance (NTCR) behavior. The bulk conductivity followed the Arrhenius law with Ea = 1.24-1.55 eV, which can be attributed to the electronic conduction. In the modulus (M''-f) spectra, a peak and a shoulder were observed, corresponding to the bulk and polar nano regions (PNRs) response respectively. With the increase of either temperature or NN content, the shoulder gradually depressed and even disappeared. A correlation between the PNRs evolution and the relaxation behavior was constructed.

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Electrical properties and relaxation behavior of Bi_0.5Na_0.5TiO₃-BaTiO₃ ceramics modified with NaNbO₃

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