Отправить статью по E-mail Synthesis and heat capacity study of stannates Dy2Sn2O7 and Ho2Sn2O7 in the range 370–1000 K
- Авторы: Denisova L.T.1, Irtyugo L.A.1, Kargin Y.F.2, Denisov V.M.1, Beletskii V.V.1
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Учреждения:
- Institute of Nonferrous Metals and Materials Science
- Baikov Institute of Metallurgy and Material Sciences
- Выпуск: Том 62, № 6 (2017)
- Страницы: 814-817
- Раздел: Physical Methods of Investigation
- URL: https://journals.rcsi.science/0036-0236/article/view/167773
- DOI: https://doi.org/10.1134/S0036023617060043
- ID: 167773
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Аннотация
Stannates Dy2Sn2O7 and Ho2Sn2O7 are produced by solid-phase synthesis from Dy2O3 (Ho2O3)–SnO2 stoichiometric mixtures by calcining at 1473 K. The molar heat capacity of holmium and dysprosium stannates is measured by differential scanning calorimetry (DSC) in the temperature range 370–1000 K. The experimental data are used to calculate thermodynamic properties (enthalpy change H°(T)–H°(370 K), entropy change S°(T)–S°(370 K), and the reduced Gibbs free energy Φ°(T)) of the synthesized compound.
Об авторах
L. Denisova
Institute of Nonferrous Metals and Materials Science
Автор, ответственный за переписку.
Email: antluba@mail.ru
Россия, Krasnoyarsk, 660041
L. Irtyugo
Institute of Nonferrous Metals and Materials Science
Email: antluba@mail.ru
Россия, Krasnoyarsk, 660041
Yu. Kargin
Baikov Institute of Metallurgy and Material Sciences
Email: antluba@mail.ru
Россия, Moscow, 119991
V. Denisov
Institute of Nonferrous Metals and Materials Science
Email: antluba@mail.ru
Россия, Krasnoyarsk, 660041
V. Beletskii
Institute of Nonferrous Metals and Materials Science
Email: antluba@mail.ru
Россия, Krasnoyarsk, 660041
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