Large strain induced by the alignment of defect dipoles in (Bi3 +,Fe3 +) co-doped Pb(Zr,Ti)O3 ceramics

Jiangtao Zeng,Kunyu Zhao,Xue Shi,Xuezheng Ruan,Liaoying Zheng,Guorong Li

doi:10.1016/j.scriptamat.2017.08.013

Large strain induced by the alignment of defect dipoles in (Bi3 +,Fe3 +) co-doped Pb(Zr,Ti)O3 ceramics

Jiangtao Zeng, Kunyu Zhao + Show 4 more

https://doi.org/10.1016/j.scriptamat.2017.08.013

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Journal: Scripta materialia	Publication Date: Aug 16, 2017
Citations: 31

Affiliation: Shanghai Institute of Ceramics, Chinese Academy of Sciences

#O3 Ceramics #Alignment Of Defect Dipoles + Show 8 more

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Abstract

(Bi3+,Fe3+) co-doped Pb(Zr,Ti)O3 (PZT-BF) and single Fe3+ dope Pb(Zr,Ti)O3 (PZT-F) ceramics were prepared by solid state reaction method and their ferroelectric properties were investigated. The results showed that ferroelectric property of (Bi3+,Fe3+) co-doped PZT ceramics were very different from that of single Fe3+ doped PZT ceramics due to the different mechanisms on the interaction of defect dipoles with spontaneous polarization or domain walls. Unpoled PZT-BF showed very low remnant polarization and low electric field induced strain. After poling, the remnant polarization and electric field induced strain increased markedly due to the alignment of defect dipoles.

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