Dielectric studies of layer structured sodium - calcium bismuth titanate mixed ceramics

被引：0
|
作者：
Sastry, PSR [1 ]
Bhimasankaram, T [1 ]
Kumar, GS [1 ]
Prasad, G [1 ]
Suryanarayana, SV [1 ]
机构：
[1] Osmania Univ, Dept Phys, Hyderabad 500007, Andhra Pradesh, India
来源：
INDIAN JOURNAL OF ENGINEERING AND MATERIALS SCIENCES | 1998年 / 5卷 / 02期
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中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Dielectric properties have been studied on ferroelectric mixed ceramics comprising bismuth compounds with layer structure (NaBi)(0.5x) Ca1-x Bi4Ti4 O-15 with x = 0,0.1;0.3,0.5,0.7 and 1. The properties have been measured as a function of frequency and temperature in the ranges 1 kHz-10 MHz between 35-620 degrees C. AC conductivity is calculated using dielectric constant and loss tangents. Distortion of the Octahedra of the perovskite layers along polarisation axis could be contributing to the spontaneous polarisation.
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页码：83 / 87
页数：5
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