High-temperature heat capacity of samarium and erbium titanates with pyrochlore structure


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Abstract

Titanates Sm2Ti2O7 and Er2Ti2O7 with pyrochlore structure have been prepared by solid-phase synthesis in air from stoichiometric Sm2O3 (Er2O3)–TiO2 mixtures sequentially at 1673 and 1773 K. Hightemperature heat capacity of the oxide compounds has been determined by differential scanning calorimetry. Their thermodynamic properties have been calculated from experimental temperature dependence Cp = f(T).

About the authors

L. T. Denisova

School of Non-Ferrous Metals and Material Science

Author for correspondence.
Email: antluba@mail.ru
Russian Federation, Krasnoyarsk, 660025

L. G. Chumilina

School of Non-Ferrous Metals and Material Science

Email: antluba@mail.ru
Russian Federation, Krasnoyarsk, 660025

V. M. Denisov

School of Non-Ferrous Metals and Material Science

Email: antluba@mail.ru
Russian Federation, Krasnoyarsk, 660025

V. V. Ryabov

Institute of Metallurgy, Ural Branch

Email: antluba@mail.ru
Russian Federation, Yekaterinburg, 620219

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