Effect of Cobalt Additions on the Microstructure and Properties of Sodium Bismuth Titanate Ceramics

Single-phase (Na 0.5 Bi 0.5 )(Ti 1 – x Co x )O 3 ( x = 0–0.1, ∆ х = 0.02) ceramic samples have been prepared by solid-state reactions, and their structure, microstructure, and dielectric properties have been studied. In all of the synthesized samples, a perovskite phase with a pseudocubic unit cell...

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Bibliographic Details
Published in:Inorganic materials 2021-05, Vol.57 (5), p.541-546
Main Authors: Kaleva, G. M., Politova, E. D., Mosunov, A. V.
Format: Article
Language:English
Subjects:
Bismuth titanate
Cations
Ceramics
Chemistry
Chemistry and Materials Science
Dielectric properties
Industrial Chemistry/Chemical Engineering
Inorganic Chemistry
Materials Science
Microstructure
Perovskites
Piezoelectricity
Room temperature
Sodium
Unit cell
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Summary:Single-phase (Na 0.5 Bi 0.5 )(Ti 1 – x Co x )O 3 ( x = 0–0.1, ∆ х = 0.02) ceramic samples have been prepared by solid-state reactions, and their structure, microstructure, and dielectric properties have been studied. In all of the synthesized samples, a perovskite phase with a pseudocubic unit cell has been identified. Partial substitutions of cobalt cations for titanium cations increase the unit cell volume of the samples. We have studied the dielectric properties of the ceramics. The increased room temperature dielectric permittivity of the samples can be interpreted as evidence that the acceptor doping performed in this study has an advantageous effect on the piezoelectric properties of the sodium bismuth titanate ceramics.
ISSN:0020-1685
1608-3172
DOI:10.1134/S0020168521050034