Preparation, Characterization, Dielectric, Piezoelectric and Ferroelectric Properties of Yttrium and Praseodymium Doped Lead Titanate Ceramics
Preparation, Characterization, Dielectric, Piezoelectric and Ferroelectric Properties of Yttrium and Praseodymium Doped Lead Titanate Ceramics作者机构：Crystal Growth & Materials Research Laboratory Department of Physics and Electronics University of Jammu Jammu India
出 版 物：《材料科学与工程（中英文B版）》 (Journal of Materials Science and Engineering B)
年 卷 期：2014年第4卷第10期
页 面：293-301页
学科分类：080503[工学-材料加工工程] 080801[工学-电机与电器] 0808[工学-电气工程] 08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学]
主 题：钛酸铅陶瓷 介电行为 压电系数 镨掺杂 铁电性能 X射线衍射分析 制备 表征
摘 要：Rare earth double doped lead titanate with general formula Pb1-x Prx Ti1-y YyO3 where x (praseodymium) = 0.02, 0.04, 0.06, 0.08 and y (yttrium) = 0.02 was synthesized by solid state reaction technique. X-ray diffraction analysis confirms single phase formation with perovskite structure having tetragonal phase. Micro-structural analysis shows formation of dense micro-structure with grain size calculated using average line intercepted method. Dielectric behavior as a function of temperature was found to decrease with Pr substitution. The diffusivity in the dielectric behavior was observed in all the compositions. Piezoelectric coefficient d33 and g33 was determined with increase in compositions of Pr substituent. The ferroelectric property was observed at room temperature and the value of remanent polarization (Pr), spontaneous polarization (Ps) and (EC) coercive field was calculated.
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