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Experimental Investigation of Phase Equilibria in Fe–Ho System

  • CHEMICAL THERMODYNAMICS AND THERMOCHEMISTRY
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Abstract

Current study deals with the phase diagram evaluation of the Fe–Ho system. The alloys in the system have been studied by the means of SEM, EPMA, and DTA. The congruent melting phases in the system are: Ho2Fe17, HoFe3, HoFe2, and Ho6Fe23 forms from the peritectic reaction. The temperatures and the compositions of the following eutectic reactions have been found: L ⇄ (Ho) + HoFe2 (922 ± 1°C, 66 at % Ho), L ⇄ HoFe3 + HoFe2 (1290 ± 1°C, 30 at % Ho), L ⇄ Ho6Fe23 + Ho2Fe17 (1282 ± 3°C, 20 at % Ho), L ⇄ (γFe) + Ho2Fe17 (1335 ± 1°C, 9 at % Ho).

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ACKNOWLEDGMENTS

The study was supported by Russian Science Foundation project no. 18-73-10219P.

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Authors and Affiliations

  1. Thermochemistry of Materials Scientific Research Centre, NUST MISIS, Moscow, Russia

    I. Bajenova, J. Shakirova, A. Khvan & V. Cheverikin

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  1. I. Bajenova
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  2. J. Shakirova
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  3. A. Khvan
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  4. V. Cheverikin
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Correspondence to I. Bajenova.

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Bajenova, I., Shakirova, J., Khvan, A. et al. Experimental Investigation of Phase Equilibria in Fe–Ho System. Russ. J. Phys. Chem. 96, 2591–2597 (2022). https://doi.org/10.1134/S0036024422120056

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  • DOI: https://doi.org/10.1134/S0036024422120056

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