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Phase transitions and electroconducting properties of BIMEVOX solid electrolytes

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Abstract

Ceramic solid solutions Bi4 (V1 − x Me x )2O11 − y (x= 0−0.3, Me = Zr, Ga, Fe) were obtained by solid-state synthesis. The homogeneity regions, x ≤ 0.3 for Me = Ga, Fe and x ≤ 0.15 for Me = Zr, were established. Structure parameters, microstructure, and the thermal, dielectric, and conducting properties of the samples were studied. The concentration and temperature ranges of the existence of different polymorphs and the concentration ranges x over which the high-conductivity phase was stable at ∼20°C were established. Using DTA, DSC, and dielectric spectroscopy, the α↔β and β↔γ phase transitions were revealed. It was found that the electrical conductivity of the solid solutions decreased as x increased.

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Correspondence to E. A. Fortal’nova.

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Original Russian Text © E.A. Fortal’nova, V.V. Murasheva, M.G. Safronenko, N.U. Venskovskii, G.M. Kaleva, E.D. Politova, 2008, published in Zhurnal Fizicheskoi Khimii, 2008, Vol. 82, No. 10, pp. 1829–1835.

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Fortal’nova, E.A., Murasheva, V.V., Safronenko, M.G. et al. Phase transitions and electroconducting properties of BIMEVOX solid electrolytes. Russ. J. Phys. Chem. 82, 1633–1639 (2008). https://doi.org/10.1134/S0036024408100038

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  • DOI: https://doi.org/10.1134/S0036024408100038

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