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The Fine Structure of MgB2 Alloyed with Y and Gd

  • STRUCTURE, PHASE TRANSFORMATIONS, AND DIFFUSION
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Abstract—T

ransmission electron microscopy, energy-dispersive X-ray spectroscopy, and X-ray diffraction analysis have been used to study the structure of superconducting MgB2 ceramics that differ in their contents of alloying elements such as Y and Gd (0.5 and 0.005 wt %). The presence of superfine MgO and Y and Gd boride precipitates was found. The phase composition and sizes of the inclusions and their location in the MgB2 matrix were determined.

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ACKNOWLEDGMENTS

We thank E.V. Shalaeva for invaluable assistance in preparing samples for TEM.

Funding

The study was performed in terms of state assignment of the Ministry of Science and Higher Education (theme Davlenie). Electron-microscopic studies were performed in the Division of electron microscopy of the Center of Collective Access at the Mikheev Institute of Metal Physics, Ural Branch, Russian Academy of Sciences.

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Authors and Affiliations

  1. Mikheev Institute of Metal Physics, Ural Branch, Russian Academy of Sciences, 620180, Ekaterinburg, Russia

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

  2. JSC “Bochvar High-Technology Research Institute for Non-Organic Materials, 620990, Moscow, Russia

    A. S. Tsapleva & I. M. Abdyukhanov

Authors
  1. E. I. Kuznetsova
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  2. T. P. Krinitsina
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  3. Yu. V. Blinova
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  4. A. S. Tsapleva
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  5. I. M. Abdyukhanov
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  6. M. V. Degtyarev
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Corresponding author

Correspondence to T. P. Krinitsina.

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Translated by N. Kolchugina

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Kuznetsova, E.I., Krinitsina, T.P., Blinova, Y.V. et al. The Fine Structure of MgB2 Alloyed with Y and Gd. Phys. Metals Metallogr. 123, 915–923 (2022). https://doi.org/10.1134/S0031918X22090083

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  • DOI: https://doi.org/10.1134/S0031918X22090083

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