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

页码：118 / 125

页数：8