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Synthesis and Characterization of La and Nd Co‐Doped Bismuth Titanate Ferroelectric Ceramics
Author(s) -
Islam Muhammad Aminul,
Islam Muhammad Saidul,
Gafur Muhammad Abdul
Publication year - 2015
Publication title -
international journal of applied ceramic technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.4
H-Index - 57
eISSN - 1744-7402
pISSN - 1546-542X
DOI - 10.1111/ijac.12394
Subject(s) - materials science , bismuth , bismuth titanate , dielectric , doping , microstructure , ceramic , perovskite (structure) , analytical chemistry (journal) , impurity , ferroelectricity , grain size , calcination , mineralogy , chemical engineering , composite material , metallurgy , optoelectronics , biochemistry , chemistry , chromatography , organic chemistry , engineering , catalysis
La and Nd co‐doped bismuth titanate Bi 3 (La x Nd 1− x )Ti 3 O 12 ( x = 0.4, 0.5, and 0.6) [ BLNT ] samples were prepared by solid‐state reaction method. XRD pattern of calcined powder of BLNT ceramics indicates a single phase of bismuth‐layered perovskite structure with no visible impurity phase. The sintered BLNT ceramics showed a uniform microstructure having spherical type grain. Dielectric constant was increased by co‐doping due to increase in lattice distortion. Dielectric loss, AC conductance, and leakage current were drastically reduced due to La and Nd co‐doping. Better performance was observed for the composition Bi 3 (La x Nd 1− x )Ti 3 O 12, ( x = 0.5).