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      Electromechanical properties of Ce-doped (Ba 0.85Ca 0.15)(Zr 0.1Ti 0.9)O 3 lead-free piezoceramics

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          Abstract

          Lead-free piezoceramics based on the (Ba,Ca)(Zr,Ti)O 3 (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)O 3 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.

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          Author and article information

          Journal
          J Adv Ceram
          Journal of Advanced Ceramics
          Tsinghua University Press and Springer-Verlag Berlin Heidelberg (USA )
          2227-8508
          2226-4108
          01 June 2019
          01 October 2019
          : 8
          : 2
          : 186-195
          Affiliations
          aSemiconductor Division, Materials and Energy Research Center, Karaj 31787/316, Iran
          bDepartment of Chemistry, NIS and INSTM Reference Centre, Università di Torino, Torino 10125, Italy
          cInstitute of Materials Science, Technische Universität Darmstadt, Darmstadt 64287, Germany
          Author notes
          *Corresponding author: Raziye HAYATI, E-mail: koruza@ 123456ceramics.tu-darmstadt.de
          Article
          s40145-018-0304-2
          10.1007/s40145-018-0304-2
          Copyright © The Author(s)

          This is an open-access article distributed under the terms of the Creative Commons Attribution 4.0 International License (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. See https://creativecommons.org/licenses/by/4.0/.

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