Structural, microstructural, electrical properties of lanthanum doped-bismuth titanate ceramics prepared by low temperature combustion synthesis | Zendy

Umar Al-Amani Azlan | Zendy; Mohd Noor | Zendy

Open Access

Structural, microstructural, electrical properties of lanthanum doped-bismuth titanate ceramics prepared by low temperature combustion synthesis

Author(s) -

Umar Al-Amani Azlan,

Mohd Noor

Publication year - 2017

Publication title -

science of sintering

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.309

H-Index - 25

eISSN - 1820-7413

pISSN - 0350-820X

DOI - 10.2298/sos1702107a

Subject(s) - materials science , ionic radius , orthorhombic crystal system , lanthanum , tetragonal crystal system , grain size , doping , bismuth titanate , ceramic , octahedron , bismuth , chemical engineering , mineralogy , inorganic chemistry , crystal structure , metallurgy , crystallography , ferroelectricity , dielectric , ion , chemistry , optoelectronics , organic chemistry , engineering

In this work, lanthanum doped-bismuth titanate with different contents were successfully prepared by low-temperature combustion synthesis, and subsequently, sintered at 1000 oC for 3 hours. Their structural, microstructural and electrical were systematically studied. It was found that the structural distortion of orthorhombic structure tends to transforms to a tetragonal with the increase in La content.This change is most probably due to relaxations of orthorhombic distortion and octahedral tilting because of the difference in the ionic radius of Bi3+ and La3+. Upon increasing of La content, the grain size remarkable decreases resulted in uniform grain size with better relative density. Thus, the electrical properties of La doping were greatly improved in comparison to pure sample

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