Abstract
Gd2Sn2O7 gadolinium stannate with the pyrochlore structure has been prepared by solid-state reaction and its high-temperature heat capacity has been determined by differential scanning calorimetry in the temperature range 350–1020 K. The C p (T) data are shown to be well represented by the classic Maier–Kelley equation. The experimental C p (T) data have been used to evaluate the thermodynamic functions of gadolinium stannate: enthalpy increment H°(T)–H°(339 K), entropy change S°(T)–S°(339 K), and reduced Gibbs energy Ф°(Т).
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Original Russian Text © L.T. Denisova, L.A. Irtyugo, Yu.F. Kargin, V.V. Beletskii, V.M. Denisov, 2016, published in Neorganicheskie Materialy, 2016, Vol. 52, No. 6, pp. 635–637.
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Denisova, L.T., Irtyugo, L.A., Kargin, Y.F. et al. Synthesis and high-temperature heat capacity of Gd2Sn2O7 . Inorg Mater 52, 584–586 (2016). https://doi.org/10.1134/S0020168516060029
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DOI: https://doi.org/10.1134/S0020168516060029