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Structural and electrical properties of lead-free perovskite ceramic: Ba(In(1/2)Nb(1/2))O(3)

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Title Structural and electrical properties of lead-free perovskite ceramic: Ba(In(1/2)Nb(1/2))O(3)
 
Creator PRASAD, K
PRIYANKA
CHANDRA, KP
KULKARNI, AR
 
Subject IMPEDANCE SPECTROSCOPY ANALYSIS
MICROWAVE DIELECTRIC-PROPERTIES
IONIC PARAMETERS
RELAXATION
CONDUCTION
HZ
Ba(In(1/2)Nb(1/2))O(3) ceramic
Perovskite
Solid-state reaction method
Impedance analysis
Electrical conductivity
 
Description Lead-free perovskite Ba(In(1/2)Nb(1/2))O(3) was prepared by conventional ceramic fabrication technique at 1350 degrees C/5 h in air atmosphere. The crystal symmetry, space group and unit cell dimensions were determined from Rietveld analysis using FullProf software whereas crystallite size and lattice strain were estimated from Williamson-Hall approach. XRD analysis of the compound indicated the formation of a single-phase cubic structure with the space group Pm3m. EDAX and SEM studies were carried out in order to evaluate the quality and purity of the compound. Complex impedance as well as electric modulus analyses suggested the dielectric relaxation to be of non-Debye type. The correlated barrier hopping (CBH) model was employed to successfully explain the mechanism of charge transport in Ba(In(1/2)Nb(1/2))O(3). (C) 2010 Elsevier B.V. All rights reserved.
 
Publisher ELSEVIER SCIENCE BV
 
Date 2012-06-26T07:19:34Z
2012-06-26T07:19:34Z
2011
 
Type Article
 
Identifier JOURNAL OF NON-CRYSTALLINE SOLIDS,357(3)1209-1217
0022-3093
http://dx.doi.org/10.1016/j.jnoncrysol.2010.11.020
http://dspace.library.iitb.ac.in/jspui/handle/100/14118
 
Language English