The Influence of Ex Situ MgB2 Barrier and HIP on the Ic Anisotropy in Double Core MgB2/Cu Wires |
| D. Gajdaa, A. Morawskib, A. Zaleskic and T. Cetnerb
aInternational Laboratory of High Magnetic Fields and Low Temperature, Gajowicka 95, 53-421 Wrocław, Poland bInstitute of High Pressure Physics, Polish Academy of Sciences, Sokołowska 29/37, 01-142 Warszawa, Poland cInstitute of Low Temperature and Structure Research, Polish Academy of Sciences, Okólna 2, 50-422 Wrocław, Poland |
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| The effect of large Ic anisotropy reductions in MgB2/Cu sheathed wire is presented. The measurements of the critical current in rising magnetic field up to 14 T at 4.2 K were performed. Due to the application of the high isostatic pressure process to the copper sheathed MgB2 wires with the ex situ MgB2 homo barrier around the in situ core the anisotropy for such wires was very small and approached to less than 2% at magnetic field over 4 T. The presented geometry and technology show several advantages in their practical applications. |
| DOI: 10.12693/APhysPolA.118.1059 PACS numbers: |