Email this article High-Temperature Heat Capacity and Thermodynamic Properties of HoBiGeO5 and ErBiGeO5
- Authors: Denisova L.T.1, Kargin Y.F.2, Belousova N.V.1, Galiakhmetova N.A.1, Denisov V.M.1
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Affiliations:
- Institute of Nonferrous Metals and Materials Science
- Baikov Institute of Metallurgy and Materials Science
- Issue: Vol 54, No 9 (2018)
- Pages: 920-924
- Section: Article
- URL: https://journals.rcsi.science/0020-1685/article/view/158524
- DOI: https://doi.org/10.1134/S0020168518090029
- ID: 158524
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Abstract
Polycrystalline HoBiGeO5 and ErBiGeO5 samples have been prepared by solid-state reactions, by firing stoichiometric mixtures of Ho2O3 (Er2O3), Bi2O3, and GeO2. The effect of temperature on the heat capacity of the synthesized compounds has been investigated by differential scanning calorimetry in the range 350–1000 K. The experimental Cp(T) data have been used to evaluate the thermodynamic functions of bismuth holmium and bismuth erbium germanates: enthalpy increment, entropy change, and reduced Gibbs energy.
About the authors
L. T. Denisova
Institute of Nonferrous Metals and Materials Science
Author for correspondence.
Email: antluba@mail.ru
Russian Federation, Svobodnyi pr. 79, Krasnoyarsk, 660041
Yu. F. Kargin
Baikov Institute of Metallurgy and Materials Science
Email: antluba@mail.ru
Russian Federation, Leninskii pr. 49, Moscow, 119991
N. V. Belousova
Institute of Nonferrous Metals and Materials Science
Email: antluba@mail.ru
Russian Federation, Svobodnyi pr. 79, Krasnoyarsk, 660041
N. A. Galiakhmetova
Institute of Nonferrous Metals and Materials Science
Email: antluba@mail.ru
Russian Federation, Svobodnyi pr. 79, Krasnoyarsk, 660041
V. M. Denisov
Institute of Nonferrous Metals and Materials Science
Email: antluba@mail.ru
Russian Federation, Svobodnyi pr. 79, Krasnoyarsk, 660041
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