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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.

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ACKNOWLEDGMENTS

The work was supported by the Federal Target Program “Research and Development by the Priority Areas of the Science and Engineering Sector of Russia for 2014–2020,” Agreement no. 14.578.21.0200 in the subject “Development of the Manufacturing Process of Ceramic Parts and Assemblies by Selective Laser Fusion using Innovative Methods for Diagnostics of Processes and Manufactured Articles” (unique identifier of the Program of Research and Experimental Works: RFMEFI57816X0200).

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Authors and Affiliations

  1. Institute of Metallurgy, Ural Branch, Russian Academy of Sciences, 620016, Yekaterinburg, Russia

    L. B. Vedmid’, O. M. Fedorova, V. M. Dimitrov &  V. F. Balakirev

  2. Ural Federal University named after the first President of Russia B. N. Yeltsin, 620002, Yekaterinburg, Russia

    L. B. Vedmid’

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  1. L. B. Vedmid’
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  2. O. M. Fedorova
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  3. V. M. Dimitrov
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  4. V. F. Balakirev
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Correspondence to L. B. Vedmid’.

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Translated by Z. Svitanko

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Vedmid’, L.B., Fedorova, O.M., Dimitrov, V.M. et al. Structure and Thermal Properties of TmFe2O4 at Various Temperatures and Oxygen Pressures. Dokl Phys Chem 484, 8–11 (2019). https://doi.org/10.1134/S0012501619010044

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  • DOI: https://doi.org/10.1134/S0012501619010044

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