Large strain in Bi0.5(Na0.78K0.22)0.5TiO3-Bi(Mg0.5Ti0.5)O3 based composite ceramics under low driving field

被引：22
作者：
Khaliq, Abdul [1 ,2 ]
Sheeraz, Muhammad [1 ,2 ]
Ullah, Aman [3 ]
Lee, Jae Shin [4 ]
Ahn, Chang Won [1 ,2 ]
Kim, Ill Won [1 ,2 ]
机构：
[1] Univ Ulsan, Dept Phys, Ulsan 44610, South Korea
[2] Univ Ulsan, EHSRC, Ulsan 44610, South Korea
[3] Univ Sci & Technol, Dept Phys, Bannu, KP, Pakistan
[4] Univ Ulsan, Sch Mat Sci & Engn, Ulsan, South Korea
来源：
SENSORS AND ACTUATORS A-PHYSICAL | 2017年 / 258卷
基金：
新加坡国家研究基金会;
关键词：
Piezoelectrics; Bismuth sodium titanate; Perovskite seeds; BNKT-0.04BMT; Relaxor-ferroelectric composite; LEAD-FREE PIEZOCERAMICS; ELECTRICAL-PROPERTIES;
D O I：
10.1016/j.sna.2017.03.021
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
The fabricated relaxor/ferroelectric composite showed relaxor and/or ferroelectrie phase depending upon the weight content of added Bi0.5Na0.5TiO3 (BNT) seeds. Bi0.5Na4.5Ti4O15 large particles were processed as precursors and modified to BNT plate-like particles by means of a double molten salt method. The base material 0.96Bi(0.5)(Na0.78K0.22)(0.5)TiO3-0.04Bi(Mg0.5Ti0.5)O-3 (BNKT-0.04BMT) was synthesized by means of a solid state reaction technique. The 0-3 type composite of BNKT-0.04BMT powder and BNT seeds was chosen because of the compatibility between their perovskite structures. BNT perovskite seeds were added in 10, 15 and 20 wt% proportions to the base BNIC-0.04BMT matrix powder. The highest content of added BNT seeds (20wt%) yielded BNICT-0.04BMT that showed ferroelectric behavior. A large electric field induced normalized strain (S-max/E-max = 560 pm/V) was witnessed at the low driving field of 2.5 kV/mm for the composition with 15 wt% BNT seeds. (C) 2017 Elsevier B.V. All rights reserved.
引用
收藏
页码：174 / 181
页数：8
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