Enhanced critical current density of MgB2 superconductor synthesized in high magnetic fields

Yanwei Ma, Aixia Xu, Xiaohang Li, Xianping Zhang, Satoshi Awaji, Kazuo Watanabe

Research output: Contribution to journalArticlepeer-review

30 Citations (Scopus)

Abstract

The effect of high magnetic fields on the current carrying properties of magnesium diboride (MgB2) bulks and Fe-sheathed tapes was investigated following different thermal sequences. It is found that application of a large magnetic field during processing results in the quite uniform microstructure and the better connectivity between the MgB2 grains. As a result, the Jc of these samples has shown much higher value than that of the MgB2 samples in the absence of magnetic field. The possible mechanism of the Jc enhancement under an external magnetic field is also discussed.

Original languageEnglish
Pages (from-to)L493-L496
JournalJapanese Journal of Applied Physics, Part 2: Letters
Volume45
Issue number17-19
DOIs
Publication statusPublished - 2006 May 12

Keywords

  • Critical current density
  • Grain connectivity
  • Magnetic field processing
  • MgB

ASJC Scopus subject areas

  • Engineering(all)
  • Physics and Astronomy (miscellaneous)
  • Physics and Astronomy(all)

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