Cerium induced larger lattice distortion and piezoelectric properties of Aurivillius oxide Na0.25K0.25Bi2.5Nb2O9
Cerium induced larger lattice distortion and piezoelectric properties of Aurivillius oxide Na0.25K0.25Bi2.5Nb2O9
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铈引起Aurivilius氧化物Na0.25K0.25Bi2.5Nb2O9较大的晶格畸变和压电性能
DOI：
10.1016/j.jallcom.2018.06.127
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发表时间：
2018-10
影响因子：
6.2
通讯作者：
Xiaojuan Li
中科院分区：
文献类型：
--
作者：
Pinyang Fang;Chongyang Zhi;Zengzhe Xi;Wei Long;Xiaojuan Li
采用固相反应法合成了掺铈的层状结构铁电陶瓷K0.25Na0.25Bi2.5Nb2O9（KNBN）。铈的加入可以补偿铋离子的空位，从而改善KNBN陶瓷的自发极化和电阻率。铈改性的KNBN陶瓷的相结构被证实是正交晶系空间群为A21 am的双层Aurivillius氧化物。铈改性KNBN陶瓷的压电性能较KNBN陶瓷有明显提高。KNBN-Ce 0.2陶瓷的压电系数（d33）最大值为28 pC/N，居里温度高（Tc ≥ 580 °C），压电性能的温度稳定性好。
Bismuth layer-structured ferroelectric ceramics, K0.25Na0.25Bi2.5Nb2O9(KNBN) with the cerium addition, were synthesized by using a solid-state reaction process. It is desirable that spontaneous polarization in thea-bplane and resistivity of the KNBN ceramic could be improved by means of bismuth cation vacancies compensated by the cerium addition. Phase structure of the cerium modified KNBN ceramics were confirmed to be a two-layer Aurivillius oxide with an orthorhombic space groupA21am. Piezoelectric performances of the cerium modified KNBN ceramics were improved significantly compared with that of the KNBN ceramic. The maximum of piezoelectric coefficient (d33) was found to be 28 pC/N for the KNBN-Ce0.2 ceramic, together with high Curie temperature (Tc∼580 °C) and good temperature stability of piezoelectric properties.
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影响因子：
3.3
作者：
R. Withers;J. G. Thompson;A. Rae
通讯作者：
R. Withers;J. G. Thompson;A. Rae
影响因子：
3.4
作者：
TURNER, RC;FUIERER, PA;SHROUT, TR
通讯作者：
SHROUT, TR
Mn改性铋层Na0.25K0.25Bi2.5Nb2O9陶瓷的显微结构和电学性能
影响因子：
6.2
作者：
Xiang-Ping Jiang;Xin-Jia Wang;Jia-Xin Wen;Chao Chen
通讯作者：
Chao Chen
影响因子：
64.8
作者：
DEARAUJO, CAP;CUCHIARO, JD;SCOTT, JF
通讯作者：
SCOTT, JF
影响因子：
3.9
作者：
Chun‐Ming Wang;Jin‐feng Wang;C. Mao;Xuefeng Chen;Xianlin Dong;Z. Gai;Ming‐lei Zhao
通讯作者：
Chun‐Ming Wang;Jin‐feng Wang;C. Mao;Xuefeng Chen;Xianlin Dong;Z. Gai;Ming‐lei Zhao