Phase segregation and dielectric, ferroelectric, and piezoelectric properties of MgO-doped NBT-BT lead-free ferroelecric ceramics

被引：8
|
作者：
Liu, Gang [1 ]
Wang, Ziyang [2 ]
Zhang, Leiyang [1 ]
Shi, Wenjing [1 ]
Jing, Jiayi [1 ]
Chen, Yi [1 ]
Liu, Hongbo [3 ]
Yan, Yan [1 ]
机构：
[1] Southwest Univ, Fac Mat & Energy, Chongqing 400715, Peoples R China
[2] Southwest Univ, Hanhong Coll, Chongqing 400715, Peoples R China
[3] Shanghai Univ Engn Sci, Sch Mat Engn, Shanghai 201620, Peoples R China
来源：
MATERIALS RESEARCH EXPRESS | 2018年 / 5卷 / 03期
基金：
上海市自然科学基金; 中国国家自然科学基金;
关键词：
MgO doped; temperature-dependent ferroelectric; dielectric; lead free; ENHANCED ELECTRICAL-PROPERTIES; FREE PIEZOCERAMICS; LARGE-STRAIN; TRANSITION; CRYSTALS;
D O I：
10.1088/2053-1591/aab33b
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
MgO doped NBT-BT ceramics were prepared by the conventional electroceramic processing. The effects of MgO on the phase, microstructures and electrical properties of NBT-BT ceramics were systematically investigated. When doping content is more than 1%, a second phase appeared, which has great effect on dielectric, ferroelectric, and piezoelectric properties, such as the TF-R peak weakened, moved to the higher temperature, and eventually disappeared. When the doping content is above 1.5%, the ceramic samples show a strong relaxation. The detailed analysis and discussion can be found within this study.
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页数：8
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