High-temperature heat capacity and vibrational spectra of Eu2Sn2O7

Описание

Тип публикации: статья из журнала

Год издания: 2016

Идентификатор DOI: 10.1134/S0020168516080057

Ключевые слова: high-temperature heat capacity, Raman spectra, high-temperature heat capacity, Raman spectra, Differential scanning calorimetry, Europium, Europium compounds, Raman scattering, Solid state reactions, Temperature, Thermodynamic properties, Tin, Enthalpy increments, Entropy changes, Heat-capacity data, High temperature, Pyrochlore structures, Reduced Gibbs energies, Stoichiometric mixtures, Temperature range, Specific heat

Аннотация: The Eu2Sn2O7 compound has been prepared by solid-state reaction (by sequentially firing a stoichiometric mixture of Eu2O3 and SnO2 in air at 1273 and 1473 K) and its heat capacity has been determined by differential scanning calorimetry in the temperature range 370-1000 K. The heat capacity data have been used to evaluate the thermПоказать полностьюodynamic properties of europium stannate: enthalpy increment HA degrees(T)-HA degrees(370 K), entropy change SA degrees(T)-SA degrees(370 K), and reduced Gibbs energy Dcurrency signA degrees(T). Raman spectra of Eu2Sn2O7 polycrystals with the pyrochlore structure have been measured in the range 200-1200 cm(-1).

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Издание

Журнал: INORGANIC MATERIALS

Выпуск журнала: Vol. 52, Is. 8

Номера страниц: 811-814

ISSN журнала: 00201685

Место издания: NEW YORK

Издатель: MAIK NAUKA/INTERPERIODICA/SPRINGER

Авторы

  • Denisova L.T. (Siberian Fed Univ, Inst Nonferrous Met & Mat Sci, Pr Gazety Krasnoyarskii Rabochii 95, Krasnoyarsk 660025, Russia)
  • Irtyugo L.A. (Siberian Fed Univ, Inst Nonferrous Met & Mat Sci, Pr Gazety Krasnoyarskii Rabochii 95, Krasnoyarsk 660025, Russia)
  • Kargin Yu F. (Russian Acad Sci, Baikov Inst Met & Mat Sci, Leninskii Pr 49, Moscow 119991, Russia)
  • Denisov V.M. (Siberian Fed Univ, Inst Nonferrous Met & Mat Sci, Pr Gazety Krasnoyarskii Rabochii 95, Krasnoyarsk 660025, Russia)
  • Beletskii V.V. (Siberian Fed Univ, Inst Nonferrous Met & Mat Sci, Pr Gazety Krasnoyarskii Rabochii 95, Krasnoyarsk 660025, Russia)
  • Shubin A.A. (Siberian Fed Univ, Inst Nonferrous Met & Mat Sci, Pr Gazety Krasnoyarskii Rabochii 95, Krasnoyarsk 660025, Russia)

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