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The grain size-dependent electrical properties of Bi4Ti3O12 piezoelectric ceramics
Chen Huanbei; Shen Bo; Xu Jinbao; Zhai Jiwei
2013
Source PublicationJOURNAL OF ALLOYS AND COMPOUNDS
ISSN0925-8388
Volume551Issue:2Pages:92-97
Abstract 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.
KeywordGrain Size Piezoelectric Properties Thermal Stability
Subject AreaChemistry ; Materials Science ; Metallurgy & Metallurgical Engineering
DOI10.1016/j.jallcom.2012.09.149
Indexed BySCI
WOS IDWOS:000313651600017
Citation statistics
Document Type期刊论文
Identifierhttp://ir.xjipc.cas.cn/handle/365002/2680
Collection材料物理与化学研究室
AffiliationTongji Univ, Funct Mat Res Lab, Shanghai 200092, Peoples R China;Chinese Acad Sci, Xinjiang Tech Inst Phys & Chem, Urumqi 830011, Peoples R China
Recommended Citation
GB/T 7714
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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