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Enhanced and stable strain memory in Mn‐doped Pb(Mn 1/3 Sb 2/3 )O 3 –Pb(Zr,Ti)O 3 ceramics realized by sesquipolar loading
Author(s) -
Chen Caiyun,
Zhou Zhiyong,
Liu Zhen,
Liang Ruihong,
Zhang Wenbin,
Dong Xianlin
Publication year - 2018
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/jace.15311
Subject(s) - materials science , electric field , strain (injury) , shape memory alloy , coercivity , doping , analytical chemistry (journal) , condensed matter physics , composite material , optoelectronics , chemistry , physics , chromatography , quantum mechanics , medicine
Abstract The negative electric field, field cycling and frequency dependence of strain memory effect in poled and aged Mn‐doped Pb(Mn 1/3 Sb 2/3 )O 3 –Pb(Zr,Ti)O 3 ( PMS – PZT ) piezoceramics under sesquipolar loading were investigated. The strain memory effect of Mn‐doped PMS – PZT is especially sensitive to the applied negative electric field. Maximum strain memory of 0.32% is achieved when the negative electric field is around negative coercive field of ~2.1 kV/mm, which can be ascribed to the partially depoled state with randomized domains. And this strain memory shows very good cycling stability, varying less than 5% up to 10 4 cycles, while almost 40% degradation is found under bipolar signal. In addition, due to the stabilized defect dipoles, the strain memory exhibits stable characteristic over a broad frequency range from 0.01 Hz to 20 Hz. The results may shed new insights into designing the novel strain memory actuators where stable strain state could be realized after the removal of electric field.