Heat Capacity and Thermodynamic Functions of DyInGe2O7 and HoInGe2O7 Germanates in the Temperature Range 350–1000 K


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The compounds DyInGe2O7 and HoInGe2O7 were synthesized by multistage calcination of stoichiometric mixtures of the constituent oxides (solid-phase synthesis) in air in the temperature range 1273–1473 K. The high-temperature heat capacities of polycrystalline samples of dysprosium–indium and holmium–indium mixed-cation germanates were measured by differential scanning calorimetry. The thermodynamic properties of the investigated oxides were calculated using the Cp = f(T) experimental data.

Sobre autores

L. Denisova

Siberian Federal University, Institute of Non-Ferrous Metals and Materials Science

Autor responsável pela correspondência
Email: antluba@mail.ru
Rússia, Krasnoyarsk, 660041

L. Irtyugo

Siberian Federal University, Institute of Non-Ferrous Metals and Materials Science

Email: antluba@mail.ru
Rússia, Krasnoyarsk, 660041

Yu. Kargin

Baikov Institute of Metallurgy and Materials Science, Russian Academy of Sciences

Email: antluba@mail.ru
Rússia, Moscow, 119991

V. Beletskii

Siberian Federal University, Institute of Non-Ferrous Metals and Materials Science

Email: antluba@mail.ru
Rússia, Krasnoyarsk, 660041

N. Belousova

Siberian Federal University, Institute of Non-Ferrous Metals and Materials Science

Email: antluba@mail.ru
Rússia, Krasnoyarsk, 660041

V. Denisov

Siberian Federal University, Institute of Non-Ferrous Metals and Materials Science

Email: antluba@mail.ru
Rússia, Krasnoyarsk, 660041

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