Dielectric loss models, relaxor behavior and high ferroelectric properties of BCZTS-xST ceramics

作者：Zeng, Fangfang; Liu, Qibin^*; Wang, Yuanyu; Peng, Shiqiang; Xue, An; Cai, Enpei

来源：Journal of Materials Science: Materials in Electronics , 2018, 29(22): 18978-18988.

DOI：10.1007/s10854-018-0022-0

• FREE PIEZOELECTRIC CERAMICS
• SRTIO3 THIN-FILMS
• PHASE-TRANSITION
• COEFFICIENT

In the work, the preparation technology of SrTiO3 is carefully investigated. The (Ba0.85Ca0.15)(Zr0.08Ti0.9Sn0.02)O-3-SrTiO3 piezoelectric ceramics are successfully synthesized by conventional solid-state reaction method, and the microstructure, ferroelectric and dielectric properties are studied in detail. The excellent ferroelectric properties are obtained when x=20 wt.% (P-r and E-c are 11.67 mu C/cm(2) and 2.06kV/mm, respectively). In addition, the Curie temperature is 114 degrees C at x=5 wt.%. The dielectric permittivity epsilon(r), dielectric loss tan and relaxor behavior are investigated in the work. In particular, two dielectric loss peaks, Model A and Model B, are systematically discussed.

• 出版日期2018-11
• 单位贵州大学