Influence of Sr-Substitution on Diffuseness of (Ba1-xSrx)TiO3 Phase Transitions

被引：4
作者：
Gabrys, M. [1 ]
Kajtoch, C. [1 ]
Bak, W. [1 ]
Handke, B. [2 ]
Starzyk, F. [3 ]
机构：
[1] Pedag Univ, Inst Phys, PL-30084 Krakow, Poland
[2] AGH Univ Sci & Technol, Fac Mat Sci & Ceram, PL-30059 Krakow, Poland
[3] Tech Univ, Inst Phys, PL-30084 Krakow, Poland
来源：
FERROELECTRICS | 2011年 / 417卷
关键词：
Ferroelectric; phase transition; dielectric spectroscopy; MICROSTRUCTURE; BATIO3;
D O I：
10.1080/00150193.2011.578507
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The results of X-ray diffraction (XRD), scanning electron microscopy (SEM) and dielectric measurements performed for samples of the polycrystalline solid solutions of (Ba1-xSrx)TiO3, are presented. An increase of diffuseness of ferroelectric phase transition and a decrease of the temperature T-m (the temperature of the maximum value of the real part of the electric permittivity; epsilon') with increase of Sr concentration is observed. Values of the phase angle (approximate to -90 degrees) measured in broad range of temperatures suggest the occurrence of polar regions (clusters) in the temperature range of paraelectric (PE)-ferroelectric (FE) phase transition.
引用
收藏
页码：110 / 117
页数：8
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