Structure and Properties of Barium Bismuth Titanate Prepared by Mechanochemical Synthesis

2008 ◽  
Vol 368 (1) ◽  
pp. 145-153 ◽  
Author(s):  
J. D. Bobić ◽  
B. D. StojanoviĆ ◽  
C. O. Paiva-Santos ◽  
L. J. Zivkovic ◽  
M. M. Vijatović ◽  
...  
Keyword(s):  
Mechanochemical Synthesis ◽  
Bismuth Titanate ◽  
Structure And Properties ◽  
Barium Bismuth

scholarly journals Study of barium bismuth titanate prepared by mechanochemical synthesis

2009 ◽  
Vol 41 (3) ◽  
pp. 329-335 ◽  
Author(s):  
Z.Z. Lazarevic ◽  
J. Bobic ◽  
N.Z. Romcevic ◽  
N. Paunovic ◽  
B.D. Stojanovic
Keyword(s):  
Mechanochemical Synthesis ◽  
Bismuth Titanate ◽  
Layer Structure ◽  
Layered Perovskite ◽  
Particle Analysis ◽  
Air Atmosphere ◽  
Calcination Step ◽  
Average Grain Size ◽  
Layered Perovskite Structure ◽  
Barium Bismuth

Barium-bismuth titanate, BaBi4Ti4O15 (BBT), a member of Aurivillius bismuth-based layer-structure perovskites, was prepared from stoichiometric amounts of barium titanate and bismuth titanate obtained via mechanochemical synthesis. Mechanochemical synthesis was performed in air atmosphere in a planetary ball mill. The reaction mechanism of BaBi4Ti4O15 and the preparation and characteristics of BBT ceramic powders were studied using XRD, Raman spectroscopy, particle analysis and SEM. The Bi-layered perovskite structure of BaBi4Ti4O15 ceramic forms at 1100 ?C for 4 h without a pre-calcination step. The microstructure of BaBi4Ti4O15 exhibits plate-like grains typical for the Bi-layered structured material and spherical and polygonal grains. The Ba2+ addition leads to changes in the microstructure development, particularly in the change of the average grain size.

scholarly journals Characterization and properties of barium bismuth titanate

2009 ◽  
Vol 3 (1-2) ◽  
pp. 9-12 ◽  
Author(s):  
Jelena Bobic ◽  
Mirjana Vijatovic ◽  
Tadej Rojac ◽  
Biljana Stojanovic
Keyword(s):  
Mechanochemical Synthesis ◽  
Ball Mill ◽  
Room Temperature ◽  
Bismuth Titanate ◽  
Relaxor Ferroelectrics ◽  
X Ray ◽  
Air Atmosphere ◽  
Calcination Step ◽  
Barium Bismuth ◽  
Scanning Electron

BaBi4Ti4O15 (BBiT) was prepared from stoichiometric amounts of BaTiO3 (BT) and Bi4Ti3O12 (BIT) obtained via mechanochemical synthesis. Mechanochemical synthesis was performed in air atmosphere in a planetary ball mill. BBiT ceramics were sintered at 1100?C, 1110?C and 1120?C for 1 h without pre-calcination step. The formation of phase and crystal structure of BT, BIT and BBiT were verified using X-ray analysis. The morphology of obtained powders and microstructure were examined using scanning electron microscopy. The electrical properties of sintered samples were carried out and BBiT shows behaviour typical for relaxor ferroelectrics and dielectric constant at room temperature is approximately 93. .

Dielecric relaxation and conduction mechanism of dysprosium doped barium bismuth titanate Aurivillius ceramics

2016 ◽  
Vol 28 (3) ◽  
pp. 2775-2787 ◽  
Author(s):  
T. Badapanda ◽  
R. Harichandan ◽  
T. B. Kumar ◽  
S. R. Mishra ◽  
S. Anwar
Keyword(s):  
Conduction Mechanism ◽  
Bismuth Titanate ◽  
Barium Bismuth
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