Structure and Thermal Properties of TmFe2O4 at Various Temperatures and Oxygen Pressures


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Abstract

The stability range of TmFe2O4 was studied at a temperature of 1090°C and reduced oxygen pressure in the gas phase. Using experimental data obtained for TmFe2O4 dissociation in the temperature range of 750–900°C, its thermodynamic characteristics were calculated. The structural transformations in the temperature range from –140 to 140°C associated with charge ordering in this compound were identified.

About the authors

L. B. Vedmid’

Institute of Metallurgy, Ural Branch, Russian Academy
of Sciences; Ural Federal University named after the first President
of Russia B. N. Yeltsin

Author for correspondence.
Email: elarisa100@mail.ru
Russian Federation, Yekaterinburg, 620016; Yekaterinburg, 620002

O. M. Fedorova

Institute of Metallurgy, Ural Branch, Russian Academy
of Sciences

Email: elarisa100@mail.ru
Russian Federation, Yekaterinburg, 620016

V. M. Dimitrov

Institute of Metallurgy, Ural Branch, Russian Academy
of Sciences

Email: elarisa100@mail.ru
Russian Federation, Yekaterinburg, 620016

V. F. Balakirev

Institute of Metallurgy, Ural Branch, Russian Academy
of Sciences

Email: elarisa100@mail.ru
Russian Federation, Yekaterinburg, 620016

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