Relaxor behavior and ferroelectric properties of a new Ba4SmFe0.5Nb9.5O30 tungsten bronze ceramic
Relaxor behavior and ferroelectric properties of a new Ba4SmFe0.5Nb9.5O30 tungsten bronze ceramic
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新型Ba4SmFe0.5Nb9.5O30钨青铜陶瓷的弛豫行为和铁电性能
DOI:
10.1016/j.ceramint.2016.06.147
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发表时间:
2016-10
影响因子:
5.2
通讯作者:
Liang Fang
中科院分区:
文献类型:
--
作者:
Changzheng Hu;Zhen Sun;Qihua Zhu;Fengqi Lu;Chunchun Li;Laijun Liu;Liang Fang
Unfilled tungsten bronze ceramics with a composition of Ba4SmFe0.5Nb9.5O30were prepared by the conventional solid-state sintering method. The phase, microstructure, dielectric and ferroelectric properties were studied. Room temperature XRD results indicated that the ceramic occurs in the tetragonal space group P4bm phase with cell parameters ofa=b=12.4712(2) Å andc=3.9430(2) Å. The temperature-dependent dielectric properties, XRD data and Raman spectra data indicated that BSFN ceramics exhibit no phase changes from 35 °C to 450 °C. Fitting of a Vogel-Fulcher relationship with an activated energyEaof 0.11 eV indicates an unambiguous dielectric relaxor state near room temperature. Furthermore, the BSFN ceramics exhibited residual polarization and coercive field of 3.45 µC/cm2and 24.65 kV/cm, respectively.
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影响因子:
5.7
作者:
Y. B. Yao;C. Mak;B. Ploss
通讯作者:
Y. B. Yao;C. Mak;B. Ploss
DOI:
10.1098/rsta.2012.0451
发表时间:
2014-02
期刊:
Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences
影响因子:
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作者:
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通讯作者:
A. Rotaru;Andrew J. Miller;D. Arnold;F. Morrison
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3.7
作者:
Pandey, Chandra Shekhar;Schreuer, Juergen;Muehlberg, Manfred
通讯作者:
Muehlberg, Manfred
影响因子:
3.7
作者:
A. Rotaru;D. Arnold;A. Daoud-Aladine;F. Morrison
通讯作者:
A. Rotaru;D. Arnold;A. Daoud-Aladine;F. Morrison