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The role of MgO content in ex situ MgB<sub>2</sub> wires

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Authors:
  • Kovac, P. ;
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    unknown
  • Hugek, I. ;
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    unknown
  • Meligek, T. ;
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    unknown
  • Grivel, Jean-Claude ;
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    Orcid logo0000-0001-7835-9054
    Risø National Laboratory for Sustainable Energy, Technical University of Denmark
  • Pachla, W. ;
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    unknown
  • Strbik, V. ;
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    unknown
  • Diduszko, R. ;
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    unknown
  • Homeyer, J. ;
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    unknown
  • Andersen, N.H.
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    Risø National Laboratory for Sustainable Energy, Technical University of Denmark
DOI:
10.1088/0953-2048/17/10/L03
Abstract:
An experimental study of the effect of MgO content in the MgB2 powder used for ex situ made composite wires was carried out. Two single-core MgB2/Fe/Cu wires were made using commercial MgB2 powders from Alfa Aesar containing different fraction of MgO. Critical temperature and critical currents of as-deformed and heat-treated wires were measured. The differences between the wires are discussed and correlated with the MgO content. It was found that by increasing the amount of MgO, the inter-grain connectivity worsens, but well distributed and low size MgO particles improve flux pinning.
Type:
Journal article
Language:
English
Published in:
Superconductor Science and Technology, 2004, Vol 17, Issue 10
Keywords:
5-I nano
Main Research Area:
Science/technology
Publication Status:
Published
Review type:
Peer Review
Submission year:
2004
Scientific Level:
Scientific
ID:
9679795

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