Impedance spectroscopy and conductivity analysis study of 0.6(BNT-BT)-0.4NCZF ceramic composites

被引：2
作者：
Nanda, D. [1 ]
Samanta, B. [1 ]
Chandrasekhar, M. [1 ]
Kumar, P. [1 ]
机构：
[1] Natl Inst Technol, Dept Phys & Astron, Rourkela, Odisha, India
来源：
FERROELECTRICS | 2021年 / 572卷 / 01期
关键词：
Impedance; modulus spectroscopy; conductivity; activation energy;
D O I：
10.1080/00150193.2020.1868882
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Impedance and modulus spectroscopy along with conductivity analysis of 0.6(BNT-BT)-0.4NCZF samples, synthesised microwave processing technique are analysed and discussed. Impedance and modulus analysis revealed overall grain and grain boundary effects in 200 degrees C to 400 degrees C temperature range. Overall grain boundary (R-gb) resistance decreased from 13570 ohm to 1877 ohm in 300 degrees C to 400 degrees C temperature range. AC conductivity study showed increase in conduction with increase of frequency as well as temperature. Activation energy (E-a) for AC conduction was found to decrease from 0.81 eV (at 100 Hz) to 0.38 eV (100 kHz) in the 200 degrees C to 400 degrees C temperature range.
引用
收藏
页码：192 / 204
页数：13
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