Structure and properties of the Li0.125Na0.875NbO3 solid solution synthesized at atmospheric and high pressures

We have studied the structural and electrical properties of the Li 0.125 Na 0.875 NbO 3 solid solution prepared by a conventional ceramic processing technique and high-temperature, high-pressure synthesis. The synthesis of the Li 0.125 Na 0.875 NbO 3 solid solution at high pressure and temperature (...

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Bibliographic Details
Published in:Inorganic materials 2014-11, Vol.50 (11), p.1131-1139
Main Authors: Palatnikov, M. N., Efremov, V. V., Sidorov, N. V., Obryadina, E. Yu, Makarova, O. V., Sandler, V. A.
Format: Article
Language:English
Subjects:
Chemistry
Chemistry and Materials Science
Industrial Chemistry/Chemical Engineering
Inorganic Chemistry
Materials Science
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Summary:We have studied the structural and electrical properties of the Li 0.125 Na 0.875 NbO 3 solid solution prepared by a conventional ceramic processing technique and high-temperature, high-pressure synthesis. The synthesis of the Li 0.125 Na 0.875 NbO 3 solid solution at high pressure and temperature ( p = 6 GPa, T = 1400–1800 K) allows one to achieve a higher degree of structural order and better microhomogeneity. This is accompanied by a considerable increase in dielectric permittivity and ionic conductivity, because ion transport is contributed by the grain boundaries of the ceramic, which have a considerably larger area than those in the Li 0.125 Na 0.875 NbO 3 solid solution prepared by conventional ceramic processing.
ISSN:0020-1685
1608-3172
DOI:10.1134/S0020168514110132