Physics and Chemistry of Creating New Titanates with Perovskite Structure

The phase formation, structural features, and dielectric, ferroelectric, and piezoelectric properties of ceramics with compositions from the region of the morphotropic phase boundary in the (Na 0.5 Bi 0.5 )TiO 3 –BaTiO 3 –Bi(Mg 0.5 Ti 0.5 )O 3 system modified by different low-melting additives (Bi 2...

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Bibliographic Details
Published in:Russian Journal of Physical Chemistry A 2018-06, Vol.92 (6), p.1132-1137
Main Authors: Politova, E. D., Kaleva, G. M., Golubko, N. V., Mosunov, A. V., Sadovskaya, N. V., Bel’kova, D. A., Strebkov, D. A., Stefanovich, S. Yu, Kiselev, D. A., Kislyuk, A. M.
Format: Article
Language:English
Subjects:
Additives
Barium titanates
Bismuth oxides
Bismuth trioxide
Chemistry
Chemistry and Materials Science
Dielectric properties
Ferroelectric materials
Ferroelectricity
Lithium fluoride
Manganese dioxide
Organic chemistry
Perovskite structure
Perovskites
Phase transitions
Physical Chemistry
Piezoelectricity
Polar environments
Relaxors
Sodium chloride
Titanates
To the 100Th Anniversary of the Karpov Institute of Physical Chemistry
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Summary:The phase formation, structural features, and dielectric, ferroelectric, and piezoelectric properties of ceramics with compositions from the region of the morphotropic phase boundary in the (Na 0.5 Bi 0.5 )TiO 3 –BaTiO 3 –Bi(Mg 0.5 Ti 0.5 )O 3 system modified by different low-melting additives (Bi 2 O 3 , V 2 O 5 , KCl, NaCl–LiF, LiF, CuO, and MnO 2 ) are studied. First-order phase transitions are detected near 700–800 and 400 K that display relaxor behavior and are indicative of the presence of polar regions in a nonpolar matrix. Prospects for improving the piezoelectric properties of the modified ceramic samples are confirmed.
ISSN:0036-0244
1531-863X
DOI:10.1134/S0036024418060146