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Research Article | Open Access

Electromechanical properties of Ce-doped (Ba0.85Ca0.15)(Zr0.1Ti0.9)O3 lead-free piezoceramics

Raziye HAYATIa( ), Mohammad Ali BAHREVARa, Yadolah GANJKHANLOUb, Virginia ROJASc, Jurij KORUZAc
Semiconductor Division, Materials and Energy Research Center, Karaj 31787/316, Iran
Department of Chemistry, NIS and INSTM Reference Centre, Università di Torino, Torino 10125, Italy
Institute of Materials Science, Technische Universität Darmstadt, Darmstadt 64287, Germany
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An erratum to this article is available online at:
https://doi.org/10.1007/s40145-019-0351-3

Abstract

Lead-free piezoceramics based on the (Ba,Ca)(Zr,Ti)O3 (BCZT) system exhibit excellent electromechanical properties for low-temperature actuation applications, but suffer from relatively high processing temperatures. Here we demonstrate an approach for the reduction of the sintering temperature and simultaneous increase of the electromechanical strain response of (Ba,Ca)(Zr,Ti)O3 piezoceramics by aliovalent doping with Ce. The samples were prepared by solid state synthesis and their crystallographic structure, dielectric, ferroelectric, and electromechanical properties were investigated. The highest d*33 value of 1189 pm/V was obtained for the sample with 0.05 mol% Ce, substituted on the A-site of the perovskite lattice. The results indicate a large potential of these materials for off-resonance piezoelectric actuators.

Keywords

lead-free piezoceramic(Ba,Ca)(Zr,Ti)O3 (BCZT)ceriumactuator

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Journal of Advanced Ceramics
Volume 8 Issue 2,
June 2019
Pages 186-195
DOI: 10.1007/s40145-018-0304-2
Cite this article:
HAYATI R, BAHREVAR MA, GANJKHANLOU Y, et al. Electromechanical properties of Ce-doped (Ba0.85Ca0.15)(Zr0.1Ti0.9)O3 lead-free piezoceramics. Journal of Advanced Ceramics, 2019, 8(2): 186-195. https://doi.org/10.1007/s40145-018-0304-2

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Received: 01 August 2018
Revised: 29 October 2018
Accepted: 08 November 2018
Published: 13 June 2019
© The author(s) 2019

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