TY - JOUR
T1 - Electromechanical properties of Ce-doped (Ba0.85Ca0.15)(Zr0.1Ti0.9)O3 lead-free piezoceramics
AU - Hayati, Raziye
AU - Bahrevar, Mohammad Ali
AU - Ganjkhanlou, Yadolah
AU - Rojas, Virginia
AU - Koruza, Jurij
N1 - Funding Information:
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.
Publisher Copyright:
© 2019, The Author(s).
PY - 2019/6/1
Y1 - 2019/6/1
N2 - 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.
AB - 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.
KW - (Ba,Ca)(Zr,Ti)O (BCZT)
KW - actuator
KW - cerium
KW - lead-free piezoceramic
UR - http://www.scopus.com/inward/record.url?scp=85067272538&partnerID=8YFLogxK
U2 - 10.1007/s40145-018-0304-2
DO - 10.1007/s40145-018-0304-2
M3 - Article
AN - SCOPUS:85067272538
SN - 2226-4108
VL - 8
SP - 186
EP - 195
JO - Journal of Advanced Ceramics
JF - Journal of Advanced Ceramics
IS - 2
ER -