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

被引：43
作者：
Hayati, Raziye [1 ]
Bahrevar, Mohammad Ali [1 ]
Ganjkhanlou, Yadolah [2 ]
Rojas, Virginia [3 ]
Koruza, Jurij [3 ]
机构：
[1] Mat & Energy Res Ctr, Semicond Div, Karaj 31787316, Iran
[2] Univ Torino, NIS & INSTM Reference Ctr, Dept Chem, I-10125 Turin, Italy
[3] Tech Univ Darmstadt, Inst Mat Sci, D-64287 Darmstadt, Germany
来源：
JOURNAL OF ADVANCED CERAMICS | 2019年 / 8卷 / 02期
关键词：
lead-free piezoceramic; (Ba; Ca)(Zr; Ti)O-3 (BCZT); cerium; actuator; PIEZOELECTRIC PROPERTIES; DIELECTRIC-PROPERTIES; ELECTRICAL-PROPERTIES; TEMPERATURE; BATIO3; CERAMICS; FATIGUE;
D O I：
10.1007/s40145-018-0304-2
中图分类号：
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
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.
引用
收藏
页码：186 / 195
页数：10
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