Structural and electromechanical properties of Na0.5Bi0.5TiO3 ceramics produced by different synthesis routes

被引：4
作者：
Hussain, A. [1 ]
Maqbool, A. [1 ]
Malik, R. A. [2 ]
Kim, M. H. [1 ]
Song, T. K. [1 ]
Kim, W. J. [2 ]
机构：
[1] Changwon Natl Univ, Sch Adv Mat Engn, Gyeongnam 641773, South Korea
[2] Changwon Natl Univ, Dept Phys, Gyeongnam 641773, South Korea
来源：
14TH INTERNATIONAL SYMPOSIUM ON ADVANCED MATERIALS (ISAM 2015) | 2016年 / 146卷
基金：
新加坡国家研究基金会;
关键词：
PHASE; STRAIN;
D O I：
10.1088/1757-899X/146/1/012006
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Sodium bismuth titanate, Na0.5Bi0.5TiO3 ( NBT) ceramics were produced by three different methods; conventional mixed-oxide ( CMO) route, molten salt synthesis ( MSS) and topochemical microcrystal conversion ( TMC) and then sintered at 1150 degrees C for 2 h in air atmosphere. The crystal structure, dielectric, ferroelectric and field-induced strain properties were investigated for all samples. All samples showed a single phase perovskite structure without any evidences of unwanted secondary phases. The NBT ceramics synthesized by the TMC method show slightly better dielectric, ferroelectric and field induced strain response as compared with CMO and MSS synthesized ceramics. The room temperature dielectric constant measured at 1 kHz increased from 218 for NBT ceramics synthesized by MSS method to 271 and 330 for CMO and TMC synthesized ceramics, respectively. Similarly, the dynamic piezoelectric coefficient ( d(33)(*)) enhanced from 91 pm/V for CMO synthesized to 97 pm/V and 107 pm/V for MSS and TMC synthesized ceramics, respectively.
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页数：5
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