Enhanced energy storage properties of lead-free (1−x)Bi0.5Na0.5TiO3–xSrTiO3 antiferroelectric ceramics by two-step sintering method

Ning Xu; Yunfei Liu; Zhenglei Yu; Ruihong Yao; Jiaojiao Ye; Yinong Lu

doi:10.1007/s10854-016-5550-x

Enhanced energy storage properties of lead-free (1−x)Bi_0.5Na_0.5TiO₃–xSrTiO₃ antiferroelectric ceramics by two-step sintering method

Ning Xu, Yunfei Liu, Zhenglei Yu, Ruihong Yao, Jiaojiao Ye, Yinong Lu

College of Materials Science and Engineering

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

32 Scopus citations

Abstract

The lead-free (1−x)Bi_0.5Na_0.5TiO₃–xSrTiO₃ antiferroelectric ceramics were synthesized by two-step sintering method. The influences of SrTiO₃ contents, second sintering temperatures and soaking times on phase structure and energy-storage density were investigated in detail. As the content of SrTiO₃ increases, the ceramics transform from rhombohedral ferroelectric phase into the tetragonal antiferroelectric phase (or pseudocubic phase). The appropriate soaking time and second sintering temperature are beneficial to obtain dense ceramics with fine homogeneous grains, whose the external breakdown electric field and maximum polarization have a large improvement. The optimum electrical performances with low remanent polarization (3.21 μC/cm²), a large maximum polarization (31.05 μC/cm²), and a large energy density (0.95 J/cm³) at 10 Hz were obtained at 1160 °C for BNT–35ST ceramics.

Original language	English
Pages (from-to)	12479-12484
Number of pages	6
Journal	Journal of Materials Science: Materials in Electronics
Volume	27
Issue number	12
DOIs	https://doi.org/10.1007/s10854-016-5550-x
State	Published - 1 Dec 2016

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title = "Enhanced energy storage properties of lead-free (1−x)Bi0.5Na0.5TiO3–xSrTiO3 antiferroelectric ceramics by two-step sintering method",

abstract = "The lead-free (1−x)Bi0.5Na0.5TiO3–xSrTiO3 antiferroelectric ceramics were synthesized by two-step sintering method. The influences of SrTiO3 contents, second sintering temperatures and soaking times on phase structure and energy-storage density were investigated in detail. As the content of SrTiO3 increases, the ceramics transform from rhombohedral ferroelectric phase into the tetragonal antiferroelectric phase (or pseudocubic phase). The appropriate soaking time and second sintering temperature are beneficial to obtain dense ceramics with fine homogeneous grains, whose the external breakdown electric field and maximum polarization have a large improvement. The optimum electrical performances with low remanent polarization (3.21 μC/cm2), a large maximum polarization (31.05 μC/cm2), and a large energy density (0.95 J/cm3) at 10 Hz were obtained at 1160 °C for BNT–35ST ceramics.",

author = "Ning Xu and Yunfei Liu and Zhenglei Yu and Ruihong Yao and Jiaojiao Ye and Yinong Lu",

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doi = "10.1007/s10854-016-5550-x",

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T1 - Enhanced energy storage properties of lead-free (1−x)Bi0.5Na0.5TiO3–xSrTiO3 antiferroelectric ceramics by two-step sintering method

AU - Xu, Ning

AU - Liu, Yunfei

AU - Yu, Zhenglei

AU - Yao, Ruihong

AU - Ye, Jiaojiao

AU - Lu, Yinong

PY - 2016/12/1

Y1 - 2016/12/1

N2 - The lead-free (1−x)Bi0.5Na0.5TiO3–xSrTiO3 antiferroelectric ceramics were synthesized by two-step sintering method. The influences of SrTiO3 contents, second sintering temperatures and soaking times on phase structure and energy-storage density were investigated in detail. As the content of SrTiO3 increases, the ceramics transform from rhombohedral ferroelectric phase into the tetragonal antiferroelectric phase (or pseudocubic phase). The appropriate soaking time and second sintering temperature are beneficial to obtain dense ceramics with fine homogeneous grains, whose the external breakdown electric field and maximum polarization have a large improvement. The optimum electrical performances with low remanent polarization (3.21 μC/cm2), a large maximum polarization (31.05 μC/cm2), and a large energy density (0.95 J/cm3) at 10 Hz were obtained at 1160 °C for BNT–35ST ceramics.

AB - The lead-free (1−x)Bi0.5Na0.5TiO3–xSrTiO3 antiferroelectric ceramics were synthesized by two-step sintering method. The influences of SrTiO3 contents, second sintering temperatures and soaking times on phase structure and energy-storage density were investigated in detail. As the content of SrTiO3 increases, the ceramics transform from rhombohedral ferroelectric phase into the tetragonal antiferroelectric phase (or pseudocubic phase). The appropriate soaking time and second sintering temperature are beneficial to obtain dense ceramics with fine homogeneous grains, whose the external breakdown electric field and maximum polarization have a large improvement. The optimum electrical performances with low remanent polarization (3.21 μC/cm2), a large maximum polarization (31.05 μC/cm2), and a large energy density (0.95 J/cm3) at 10 Hz were obtained at 1160 °C for BNT–35ST ceramics.

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Enhanced energy storage properties of lead-free (1−x)Bi_0.5Na_0.5TiO₃–xSrTiO₃ antiferroelectric ceramics by two-step sintering method

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