Issue 42, 2016
From the journal:

RSC Advances

Enhanced piezoelectric properties and constricted hysteresis behaviour in PZT ceramics induced by Li+–Al3+ ionic pairs†

Y. Feng,a   W. L. Li,ab   D. Xu,a   W. P. Cao,a   Y. Yua  and  W. D. Fei*a  

* Corresponding authors

a School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, P. R. China
E-mail: wdfei@hit.edu.cn

b National Key Laboratory of Science and Technology on Precision Heat Processing of Metals, Harbin Institute of Technology, Harbin 150001, P. R. China

Abstract

Recently, we proposed a new approach (Li+–Al3+ ionic pairs doping) to enhance the piezoelectric properties of BaTiO3 ceramic. Here we sequentially prove that Li+ and Al3+ can also enhance the piezoelectric properties of PbZr0.52Ti0.48O3 (PZT) ceramic. The X-ray diffraction results demonstrate the optimized distribution of Li+–Al3+ ionic pairs parallel to the [001] direction in the doped ceramics, as same as the results in BaTiO3-based ceramic. The doped ceramics exhibit constricted hysteresis loops, which is associated with the restoring force of Li+–Al3+ ionic pairs as a result of the Coulomb force between Li+ and Al3+ ions. The results show that the piezoelectric properties and corresponding temperature stability of the doped ceramics were enhanced significantly. The analysis and conclusion indicate that the piezoelectric mechanism coming from ionic pairs applies equally well to the PZT ceramic. Co-doping Li+ and Al3+ into the A-site is a preferable approach for the piezoelectric property enhancement of ABO3 ferroelectric ceramics.

Graphical abstract: Enhanced piezoelectric properties and constricted hysteresis behaviour in PZT ceramics induced by Li+–Al3+ ionic pairs

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Article information

DOI
https://doi.org/10.1039/C6RA00152A
Article type
Paper
Submitted
04 Jan 2016
Accepted
01 Apr 2016
First published
05 Apr 2016

RSC Adv., 2016,6, 36118-36124

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Enhanced piezoelectric properties and constricted hysteresis behaviour in PZT ceramics induced by Li+–Al3+ ionic pairs

Y. Feng, W. L. Li, D. Xu, W. P. Cao, Y. Yu and W. D. Fei, RSC Adv., 2016, 6, 36118 DOI: 10.1039/C6RA00152A

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