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Structure of Magnesium Diboride after Cold Deformation and Low-Temperature Recovery Annealing

  • STRUCTURE, PHASE TRANSFORMATIONS, AND DIFFUSION
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Abstract

The structure of a massive MgB2 compound deformed by upsetting at room temperature and then annealed at 650°C has been investigated by X-ray diffraction analysis, scanning and transmission electron microscopy. The obtained material is characterized by a dense nanosized structure of the matrix MgB2 phase with good intergrain bonds and a uniform distribution of dispersed MgO inclusions.

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ACKNOWLEDGMENTS

The investigations were performed using the equipment of the Center of Collaborative Access “Test Center of Nanotechnologies and Advanced Materials,” Institute of Metal Physics, Ural Branch, Russian Academy of Sciences.

The work was carried out under a state assignment, theme “Pressure,” no. АААА-А18-118020190104-3.

The authors thank V.P. Pilyugin for deformation of samples and the researchers at the National Science Center Kharkov Institute of Physics and Technologies M.A. Tikhonovskii and I.F. Kislyak, who supplied us with the initial samples.

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Authors and Affiliations

  1. Mikheev Institute of Metal Physics, Ural Branch, Russian Academy of Sciences, 620108, Ekaterinburg, Russia

    E. I. Kuznetsova, T. P. Krinitsina, M. V. Degtyarev & Yu. V. Blinova

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  1. E. I. Kuznetsova
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  2. T. P. Krinitsina
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  3. M. V. Degtyarev
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  4. Yu. V. Blinova
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Correspondence to E. I. Kuznetsova.

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Translated by G. Salnikov

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Kuznetsova, E.I., Krinitsina, T.P., Degtyarev, M.V. et al. Structure of Magnesium Diboride after Cold Deformation and Low-Temperature Recovery Annealing. Phys. Metals Metallogr. 119, 1204–1209 (2018). https://doi.org/10.1134/S0031918X18120104

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  • DOI: https://doi.org/10.1134/S0031918X18120104

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