Email this article High-temperature heat capacity and thermodynamic properties of Tb2Sn2O7
- Authors: Denisova L.T.1, Irtyugo L.A.1, Kargin Y.F.2, Beletskii V.V.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 53, No 1 (2017)
- Pages: 93-95
- Section: Article
- URL: https://journals.rcsi.science/0020-1685/article/view/158158
- DOI: https://doi.org/10.1134/S0020168517010046
- ID: 158158
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Abstract
Tb2Sn2O7 has been prepared by solid-state reaction in air at 1473 K over a period of 200 h and its isobaric heat capacity has been studied experimentally in the range 350–1073 K. The Cp(T) data for this compound have no extrema and are well represented by the classic Maier–Kelley equation. The experimental Cp(T) data have been used to evaluate the thermodynamic properties of terbium stannate (pyrochlore structure): enthalpy increment H°(T)–H°(350 K), entropy change S°(T)–S°(350 K), and reduced Gibbs energy Ф°(Т).
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
L. A. Irtyugo
Institute of Nonferrous Metals and Materials Science
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
V. V. Beletskii
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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