Electric-field-temperature phase diagram and the properties of AgNbO3-modified Bi0.5Na0.5TiO3

被引：3
作者：
Chen, Jing [1 ]
Li, Yang [1 ]
Teng, Pengpeng [1 ]
Wu, Lei [2 ,3 ]
机构：
[1] Nanjing Univ Aeronaut & Astronaut, Coll Mat Sci & Technol, State Key Lab Mech & Control Mech Struct, Nanjing 210016, Jiangsu, Peoples R China
[2] Nanjing Univ, Coll Engn & Appl Sci, Nanjing, Jiangsu, Peoples R China
[3] Nanjing Univ, Natl Lab Solid State Microstruct, Nanjing, Jiangsu, Peoples R China
来源：
FERROELECTRICS | 2017年 / 520卷 / 01期
基金：
中国国家自然科学基金;
关键词：
Bi0.5Na0.5TiO3; electric-field-temperature (E-T) phase diagram; electric field-induced strain; lead-free piezoelectric; LEAD-FREE; CERAMICS; FERROELECTRICS; TRANSITION;
D O I：
10.1080/00150193.2017.1375295
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
For some high-performance materials, AgNbO3 (AN) is a possible doping material used to improve BNT-based ceramics and realize the measurement of their electric-field-temperature (E-T) phase diagrams. The dielectric, ferroelectric and electric field-induced strain responses of (1-x)(Bi0.5Na0.5) TiO3(BNT)-xAgNbO(3) (0 <= x <= 0.1) piezoelectric ceramics were systematically investigated in this research. A large strain of 0.225% (corresponding to a large d(33) signal of 320 pm/V) similar to that obtained in the other electric field-induced binary BNT-based ceramics was achieved with 0.05 mol AgNbO3 at room temperature. In addition, the electric-field-temperature (E-T) phase diagram for (1-x)(Bi0.5Na0.5) TiO3-xAgNbO(3) (x = 0.03) was established. The transitions between the ferroelectric, ergodic, and nonergodic relaxor states of the materials were found as a function of composition and temperature.
引用
收藏
页码：118 / 125
页数：8
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