Enhancement of charging and discharging rates for partially insulated MgB2 magnets composed of Cr-coated MgB2 superconducting wires

Y. G. Kim, J. M. Kim, K. H. Kim, H. S. Noh, H. S. Kim, D. Y. Hwang, H. G. Lee

Research output: Contribution to journalArticlepeer-review

8 Citations (Scopus)

Abstract

In this paper, we propose the use of Cr-coated MgB2 wires to enhance the charging/discharging rates of the MgB2 magnet fabricated with a partial insulation (PI) winding technique that can provide a self-protecting feature to the magnet. The charging/discharging rates of the PI magnets with the Cr-coated MgB2 wires was approximately 10 times faster than that the magnets with un-coated wires. In addition, the self-protective behavior of the PI magnet with the Cr-coated wires was verified via over-current analysis. From the test results, the effectiveness of the proposed winding technique was verified for the development of self-protective MgB2 magnetic resonance imaging (MRI) magnets with rapid charging/discharging rates.

Original languageEnglish
Article number102754
JournalResults in Physics
Volume15
DOIs
Publication statusPublished - 2019 Dec

Bibliographical note

Funding Information:
This work was supported by the Materials and Components Technology Development Program of KEIT [10053590, Development of MgB2 wire and coil with high critical current and long length for superconducting medical electric power equipment].

Publisher Copyright:
© 2019 The Authors

ASJC Scopus subject areas

  • General Physics and Astronomy

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