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Thermodynamic stability of calcium vanadium garnet ferrites upon formation of substitutional solid solutions

  • Synthesis and Properties of Inorganic Compounds
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Abstract

The thermodynamic stability of calcium vanadium garnet ferrites Ca3Fe3.5 − x Ti2x V1.5 − x O12 upon isomorphic substitution of titanium ions for iron and vanadium ions was studied by the EMF method using ZrO2(Y2O3) ceramic solid electrolyte. Temperature-dependent ΔG 0 was determined. Isomorphic substitutions of titanium ions for iron and vanadium ions in the inequivalent sublattices of the garnet structure in a temperature range of 1100–1483 K cause changes in ΔG 0 due to the entropy and enthalpy components and has a minimal value when x = 0.15.

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Authors and Affiliations

  1. Russian State Professional Pedagogical University, Yekaterinburg, Russia

    G. V. Denisov

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  1. G. V. Denisov
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Original Russian Text © G.V. Denisov, 2013, published in Zhurnal Neorganicheskoi Khimii, 2013, Vol. 58, No. 2, pp. 168–171.

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Denisov, G.V. Thermodynamic stability of calcium vanadium garnet ferrites upon formation of substitutional solid solutions. Russ. J. Inorg. Chem. 58, 134–137 (2013). https://doi.org/10.1134/S0036023613020034

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  • DOI: https://doi.org/10.1134/S0036023613020034

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