Temperature induced high charge-discharge performances in lead-free Bi0.5Na0.5TiO3-based ergodic relaxor ferroelectric ceramics

被引：165

作者：

Li, Feng ^{[1
,2
,3
]}

Yang, Ke ^{[1
]}

Liu, Xing ^{[1
]}

Zou, Jian ^{[2
,3
]}

Zhai, Jiwei ^{[1
]}

Shen, Bo ^{[1
]}

Li, Peng ^{[1
]}

Shen, Jie ^{[1
]}

Liu, Baihui ^{[1
]}

Chen, Pan ^{[1
]}

Zhao, Kunyu ^{[2
]}

Zeng, Huarong ^{[2
]}

机构：

[1] Tongji Univ, Sch Mat Sci & Engn, Key Lab Adv Civil Engn Mat, Minist Educ, 4800 Caoan Rd, Shanghai 201804, Peoples R China

[2] Chinese Acad Sci, Shanghai Inst Ceram, key Lab Inorgan Funct Mat & Devices, Shanghai 200050, Peoples R China

[3] Univ Chinese Acad Sci, Beijing 100049, Peoples R China

来源：

SCRIPTA MATERIALIA | 2017年 / 141卷

基金：

国家重点研发计划;

关键词：

BNT-based; Lead-free ceramic; Charge-discharge; Energy storage; ENERGY-STORAGE PROPERTIES; ANTIFERROELECTRIC CERAMICS; PHASE-TRANSITION; ELECTROSTRICTIVE STRAIN; FREE PIEZOCERAMICS; SOLID-SOLUTIONS; FIELD; DIELECTRICS; CAPACITORS; DEPENDENCE;

D O I：

10.1016/j.scriptamat.2017.07.010

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The temperature dependence of energy storage and charge-discharge properties of a lead-free 0.62Bi(0.5)Na(0.5)TiO(3)-0.06BaTiO(3)-0.32(Sr0.7Bi0.2 square(0.1))TiO3 ergodic relaxor ferroelectric ceramic were investigated. The energy storage density was maintained >= 0.5 J/cm(3) up to 140 degrees C with a high efficiency >= 90%. The stored energy was released in sub-microsecond durations and charge-discharge performances were enhanced as temperature increased to 160 degrees C. This ceramic possessed an enhanced power density 182 MW/cm(3) and large current density 606 A/cm(2). All results showed that this ergodic relaxor ferroelectric ceramics appeared very promising for pulse capacitor applications. (C) 2017 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

引用

页码：15 / 19

页数：5

共 36 条

[1] High-temperature dielectrics in CaZrO3-modified Bi1/2Na1/2TiO3-based lead-free ceramics [J].