Abstract
We have studied the structural and electrical properties of the Li0.125Na0.875NbO3 solid solution prepared by a conventional ceramic processing technique and high-temperature, high-pressure synthesis. The synthesis of the Li0.125Na0.875NbO3 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 Li0.125Na0.875NbO3 solid solution prepared by conventional ceramic processing.
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Original Russian Text © M.N. Palatnikov, V.V. Efremov, N.V. Sidorov, E.Yu. Obryadina, O.V. Makarova, V.A. Sandler, 2014, published in Neorganicheskie Materialy, 2014, Vol. 50, No. 11, pp. 1222–1230.
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Palatnikov, M.N., Efremov, V.V., Sidorov, N.V. et al. Structure and properties of the Li0.125Na0.875NbO3 solid solution synthesized at atmospheric and high pressures. Inorg Mater 50, 1131–1139 (2014). https://doi.org/10.1134/S0020168514110132
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DOI: https://doi.org/10.1134/S0020168514110132