High-Temperature Heat Capacity of Y 0.65 Pr 0.35 BiGeO 5  and Y 0.65 Nd 0.35 BiGeO 5  in the Range 350–1000 K

L. T. Denisova; A. D. Izotov; Yu. F. Kargin; N. V. Belousova; N. A. Galiakhmetova; E. O. Golubeva; V. M. Denisov

doi:10.1134/S0012501618120011

High-Temperature Heat Capacity of Y_0.65Pr_0.35BiGeO₅ and Y_0.65Nd_0.35BiGeO₅ in the Range 350–1000 K

作者: Denisova L.T.¹, Izotov A.D.², Kargin Y.F.³, Belousova N.V.¹, Galiakhmetova N.A.¹, Golubeva E.O.¹, Denisov V.M.¹
隶属关系:
1. Siberian Federal University
2. Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences
3. Baikov Institute of Metallurgy and Materials Science, Russian Academy of Sciences
期: 卷 483, 编号 2 (2018)
页面: 151-154
栏目: Physical Chemistry
URL: https://journals.rcsi.science/0012-5016/article/view/153917
DOI: https://doi.org/10.1134/S0012501618120011
ID: 153917

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Oxides Y_0.65Pr_0.35BiGeO₅ and Y_0.65Nd_0.35BiGeO₅ have been synthesized by a ceramic method. The heat capacity of fine crystalline samples has been studied in the range 350–1000 K by differential scanning calorimetry. The C_p = f(T) dependences can be described by the Maier–Kelley equation. The thermodynamic functions of these oxides—changes in enthalpy, entropy, and reduced Gibbs energy—have been calculated from the experimental data on high-temperature heat capacity.