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Liquid-Phase Shock-Assisted Consolidation of Superconducting MgB2 Composites

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Abstract

An original two-stage liquid-phase hot explosive compaction (HEC) procedure of Mg-B precursors above 900 ∘C provides the formation of superconductivity MgB2 phase in the whole volume of billets with maximal T c = 38.5 K without any further sintering. The liquid-phase HEC strongly increases the solid-state reaction rate similar to photostimulation, but in this case, due to the high penetrating capability of shock waves in a whole volume of cylindrical billets and consolidation of MgB2 precursors near to theoretical density allows one to produce bulk, long-body cylindrical samples important for a number practical applications.

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Authors and Affiliations

  1. Andronikashvili Institute of Physics, Ivane Javakhishvili Tbilisi State University, 6 Tamarashvili St., 0177, Tbilisi, Georgia

    G. Mamniashvili

  2. Ivane Javakhishvili Tbilisi State University, 3, Chavchavadze Ave., 0128, Tbilisi, Georgia

    D. Daraselia & D. Japaridze

  3. G. Tsulukidze Mining Institute, 7, Mindeli St., 0186, Tbilisi, Georgia

    A. Peikrishvili & B. Godibadze

Authors
  1. G. Mamniashvili
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  2. D. Daraselia
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  3. D. Japaridze
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  4. A. Peikrishvili
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  5. B. Godibadze
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Correspondence to G. Mamniashvili.

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Mamniashvili, G., Daraselia, D., Japaridze, D. et al. Liquid-Phase Shock-Assisted Consolidation of Superconducting MgB2 Composites. J Supercond Nov Magn 28, 1925–1929 (2015). https://doi.org/10.1007/s10948-015-3007-8

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  • DOI: https://doi.org/10.1007/s10948-015-3007-8

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