Electromechanical properties of Ce-doped (Ba0.85Ca0.15)(Zr0.1Ti0.9)O3 lead-free piezoceramics
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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.
Keywordslead-free piezoceramic (Ba,Ca)(Zr,Ti)O3 (BCZT) cerium actuator
This work was funded by Ministry of Science, Research and Technology of Iran as a Ph.D. project, with Grant No. 481392053, at Materials & Energy Research Center (MERC). It was also partially supported by Deutsche Forschungsgemeinschaft under the Sonderforschungsbereich 595 (SFB 595) fellowship.
- Bernard J. Piezoelectric Ceramics. London and New York (England and USA): Academic Press, 1971.Google Scholar
- Xiao F, Ma WB, Sun QC, et al. The electrostrictive effect and dielectric properties of lead-free 0.5Ba(ZrxTi1−x)O3−0.5(Ba0.75Ca0.25)TiO3 ceramics. J Mater Sci: Mater Electron 2013, 24: 2653–2658.Google Scholar
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