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

Yanwei Ma; Aixia Xu; Xianping Zhang; Xiaohang Li; S Awaji; K Watanabe

doi:10.1143/JJAP.45.L493

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

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

Yanwei Ma, Aixia Xu, Xianping Zhang, Xiaohang Li, S Awaji and K Watanabe

arXiv.org, Vol.45(17-19), pp.L493-L496

Cornell University Library, arXiv.org

01/05/2006

DOI: https://doi.org/10.1143/JJAP.45.L493

Abstract

Critical current density

Magnesium compounds

Magnetic fields

Magnetic properties

Superconducting tapes

The effect of high magnetic fields on the current carrying properties of both 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.

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Title: Enhanced critical current density of MgB2 superconductor synthesized in high magnetic fields
Creators - without role: Yanwei Ma - Institute of Electrical Engineering
Aixia Xu
Xianping Zhang - Institute of Electrical Engineering
Xiaohang Li - Institute of Electrical Engineering
S Awaji - Tohoku University
K Watanabe - Tohoku University
Publication Details: arXiv.org, Vol.45(17-19), pp.L493-L496
Publisher: Cornell University Library, arXiv.org; Ithaca
Identifiers: 9942073308331
Academic Unit: King Abdullah University of Science & Technology
Language: English
Resource Type: Other