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Thermal Expansion and Thermodynamic Functions of Europium Hafnate at 298–1300 K

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Abstract

Differential scanning calorimetry and high-temperature X-ray diffraction were used to measure the molar heat capacity and lattice thermal expansion of pyrochlore europium hafnate in the temperature range 298–1300 K. Eu2Hf2O7 does not experience structural transformations in this temperature range. The thermal expansivities of europium hafnate were estimated.

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ACKNOWLEDGMENTS

This work was carried out using the equipment of the Center for Collective Use of the Kurnakov Institute of General and Inorganic Chemistry of the Russian Academy of Sciences. The assistance of PhD A.A. Ashmarin in HTXRD studies is kindly appreciated.

Funding

This work was supported by the Russian Science Foundation project no. 18-13-00025: https://rscf.ru/project/18-13-00025/

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Authors and Affiliations

  1. Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, 119991, Moscow, Russia

    A. V. Guskov, P. G. Gagarin, V. N. Guskov, A. V. Khoroshilov & K. S. Gavrichev

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  1. A. V. Guskov
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  2. P. G. Gagarin
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  3. V. N. Guskov
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  4. A. V. Khoroshilov
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  5. K. S. Gavrichev
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Correspondence to V. N. Guskov.

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The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.

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Translated by O. Fedorova

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Guskov, A.V., Gagarin, P.G., Guskov, V.N. et al. Thermal Expansion and Thermodynamic Functions of Europium Hafnate at 298–1300 K. Russ. J. Inorg. Chem. 66, 1710–1713 (2021). https://doi.org/10.1134/S0036023621110085

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