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The grain size-dependent electrical properties of Bi4Ti3O12 piezoelectric ceramics
Chen Huanbei; Shen Bo; Xu Jinbao; Zhai Jiwei
2013
发表期刊JOURNAL OF ALLOYS AND COMPOUNDS
ISSN0925-8388
卷号551期号:2页码:92-97
摘要 Due to the poor insulating property of the pure bismuth titanate Bi4Ti3O12 (BIT) ceramic, it is very difficult to obtain the piezoelectric properties. This study focuses on the effect of the grain size on the electric properties and thermal stability of BIT ceramics. The BIT ceramic with different grain sizes from 4.2 mu m to 0.28 mu m were prepared by three sintering methods: normal sintering, two-step sintering and hot pressing sintering. Result shows that the problem of large leakage current of BIT ceramics can be solved by reducing grain size. The piezoelectric properties of BIT ceramics have a strong dependence on the grain size since two factors of internal stress and poling electric field strength both influences the degree of ferroelectric domain switching. The thermal stability is decreased with decreasing of the grain size since internal stresses provide an additional driving force that assists the thermal depolarization.
关键词Grain Size Piezoelectric Properties Thermal Stability
学科领域Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering
DOI10.1016/j.jallcom.2012.09.149
收录类别SCI
WOS记录号WOS:000313651600017
引用统计
文献类型期刊论文
条目标识符http://ir.xjipc.cas.cn/handle/365002/2680
专题材料物理与化学研究室
作者单位Tongji Univ, Funct Mat Res Lab, Shanghai 200092, Peoples R China;Chinese Acad Sci, Xinjiang Tech Inst Phys & Chem, Urumqi 830011, Peoples R China
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Chen Huanbei,Shen Bo,Xu Jinbao,et al. The grain size-dependent electrical properties of Bi4Ti3O12 piezoelectric ceramics[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2013,551(2):92-97.
APA Chen Huanbei,Shen Bo,Xu Jinbao,&Zhai Jiwei.(2013).The grain size-dependent electrical properties of Bi4Ti3O12 piezoelectric ceramics.JOURNAL OF ALLOYS AND COMPOUNDS,551(2),92-97.
MLA Chen Huanbei,et al."The grain size-dependent electrical properties of Bi4Ti3O12 piezoelectric ceramics".JOURNAL OF ALLOYS AND COMPOUNDS 551.2(2013):92-97.
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