Synthesis and Thermodynamic Properties of Germanate Tb2Ge2O7


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Germanate Tb2Ge2O7 has been prepared by solid-phase synthesis from a stoichiometric mixture of Tb2O3 and GeO2 by sequential firing in air at temperatures of 1273–1473 K. The effect of temperature on its molar heat capacity has been studied by differential scanning calorimetry. According to the obtained dependence Cp = f(T), the thermodynamic properties (enthalpy and entropy changes and the reduced Gibbs energy) have been calculated, and the specific heat value at 298 K has been estimated.

Sobre autores

L. Denisova

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

Autor responsável pela correspondência
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

L. Irtyugo

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

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

N. Belousova

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

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

V. Beletskii

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

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

V. Denisov

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

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

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