Phase Transitions in Li, K and Ag Modified Na1/2Bi1/2TiO3-SrTiO3-PbTiO3 Solid Solutions

被引：0
作者：
Dunce, M. [1 ]
Birks, E. [1 ]
Antonova, M. [1 ]
Plaude, A. [1 ]
Sternberg, A. [1 ]
机构：
[1] Univ Latvia, Inst Solid State Phys, LV-1063 Riga, Latvia
来源：
FERROELECTRICS | 2012年 / 436卷
关键词：
NBT; relaxors; solid solutions; phase transitions; modificators; FERROELECTRIC PROPERTIES;
D O I：
10.1080/10584587.2012.730948
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Influence of moderate substitution of Na by monovalent metals Li, K and Ag on structure, phase transitions and dielectric properties of 0.4Na(1/2)Bi(1/2)TiO(3)-0.4SrTiO(3)-0.2PbTiO(3) is studied. Substitution by Li increases, while substitution by K and Ag decreases tetragonality of unit cell. Li increases, Ag decreases while K weakly influences phase transition temperature. The characteristic for the parent phase relaxor state with T-t approaching T-m in case of substitution by K and Li transfers into diffused phase transition without T-m dependence on frequency and extended region of thermal hysteresis.
引用
收藏
页码：12 / 18
页数：7
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