Structure and properties of Er3+- modified (Bi0.5Na0.5)0.945Ba0.055TiO3-based lead-free ferroelectric ceramics

被引：0
作者：
Kong, Kaidi [1 ]
Wang, Di [3 ]
Sun, Qing [1 ]
Kong, Yuxia [1 ]
Wang, Ting [2 ]
Gong, Weiping [2 ]
Hao, Jigong [3 ]
机构：
[1] Liaocheng Univ, Sch Chem & Chem Engn, Liaocheng 252059, Peoples R China
[2] Huizhou Univ, Guangdong Prov Key Lab Elect Funct Mat & Devices, Huizhou 516001, Guangdong, Peoples R China
[3] Liaocheng Univ, Sch Mat Sci & Engn, Liaocheng 252059, Peoples R China
来源：
CERAMICS INTERNATIONAL | 2024年 / 50卷 / 22期
关键词：
Ferroelectrics; Perovskite; Structure; Electrostrain; ELECTRIC-FIELD; PHOTOLUMINESCENCE; STRAIN;
D O I：
10.1016/j.ceramint.2024.09.053
中图分类号：
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Er3+-modified (Bi0.5Na0.5)0.945Ba0.055Ti0.98(Fe0.5Sb0.5)0.02O3 (BNBT-FS) lead-free ferroelectric ceramics with large electrostrain and electrostrictive response were fabricated in our work. Results showed that Er3+-doping induced the destruction of ferroelectric order and significantly enhanced the field-induced strain. For 0.2 mol% modified sample, the unipolar strain reached 0.463 % under the electric field of 80 kV/cm, yielding a large normalized strain d33* (Smax/Emax) of 579 pm/V. For 0.4 mol% modified sample, high electrostrictive effect with temperature-insensitive electrostrictive coefficient Q33 (0.022-0.026 m4/C2 in the temperature range of 25-100 degrees C) was obtained. The large electrostrain and electrostrictive response in the present materials show the great potential of the materials for nonlinear actuators applications.
引用
收藏
页码：47024 / 47029
页数：6
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