Structure and Thermodynamic Properties of the SmGaGe2O7 Oxide | Научно-инновационный портал СФУ

Structure and Thermodynamic Properties of the SmGaGe2O7 Oxide

Тип публикации: статья из журнала

Год издания: 2020

Идентификатор DOI: 10.1134/S1063783420020109

Ключевые слова: samarium gallium germanate, structure, heat capacity

Аннотация: The SmGaGe2O7 oxide material has been obtained from initial Sm2O3, Ga2O3, and GeO2 oxides by solid-phase synthesis with annealing in air in the temperature range of 1273-1473 K. The structure of the investigated germanate (sp. gr. P2(1)/c, a = 7.18610(9) angstrom, b = 6.57935(8) angstrom, and c = 12.7932(2) angstrom) has been established by X-ray diffraction and the high-temperature heat capacity has been determined by differential scanning calorimetry. Using the experimental data on C-p = f(T), the thermodynamic properties of the compound have been calculated. Abstract: The SmGaGe2O7 oxide material has been obtained from initial Sm2O3, Ga2O3, and GeO2 oxides by solid-phase synthesis with annealing in air in the temperature range of 1273–1473 K. The structure of the investigated germanate (sp. gr. P21/c, a = 7.18610(9) Å, b = 6.57935(8) Å, and c = 12.7932(2) Å) has been established by X-ray diffraction and the high-temperature heat capacity has been determined by differential scanning calorimetry. Using the experimental data on Cp = f(T), the thermodynamic properties of the compound have been calculated. © 2020, Pleiades Publishing, Ltd.

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Издание

Журнал: PHYSICS OF THE SOLID STATE

Выпуск журнала: Vol. 62, Is. 2

Номера страниц: 384-387

ISSN журнала: 10637834

Место издания: MOSCOW

Издатель: PLEIADES PUBLISHING INC

Авторы

  • Denisova L.T. (Siberian Fed Univ, Krasnoyarsk 660041, Russia)
  • Molokeev M.S. (Siberian Fed Univ, Krasnoyarsk 660041, Russia; Russian Acad Sci, Siberian Branch, Krasnoyarsk Sci Ctr, Kirensky Inst Phys, Krasnoyarsk 660036, Russia)
  • Irtyugo L.A. (Siberian Fed Univ, Krasnoyarsk 660041, Russia)
  • Beletskii V.V. (Siberian Fed Univ, Krasnoyarsk 660041, Russia)
  • Belousova N.V. (Siberian Fed Univ, Krasnoyarsk 660041, Russia)
  • Denisov V.M. (Siberian Fed Univ, Krasnoyarsk 660041, Russia)

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