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

doi:10.1016/j.rinp.2019.102754

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

Department of Materials Science and Engineering

Research output: Contribution to journal › Article › peer-review

7 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 language	English
Article number	102754
Journal	Results in Physics
Volume	15
DOIs	https://doi.org/10.1016/j.rinp.2019.102754
Publication status	Published - 2019 Dec

ASJC Scopus subject areas

Physics and Astronomy(all)

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10.1016/j.rinp.2019.102754

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

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.",

author = "Kim, {Y. G.} and Kim, {J. M.} and Kim, {K. H.} and Noh, {H. S.} and Kim, {H. S.} and Hwang, {D. Y.} and Lee, {H. G.}",

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: {\textcopyright} 2019 The Authors",

year = "2019",

month = dec,

doi = "10.1016/j.rinp.2019.102754",

language = "English",

volume = "15",

journal = "Results in Physics",

issn = "2211-3797",

publisher = "Elsevier BV",

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TY - JOUR

T1 - Enhancement of charging and discharging rates for partially insulated MgB2 magnets composed of Cr-coated MgB2 superconducting wires

AU - Kim, Y. G.

AU - Kim, J. M.

AU - Kim, K. H.

AU - Noh, H. S.

AU - Kim, H. S.

AU - Hwang, D. Y.

AU - Lee, H. G.

N1 - 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

PY - 2019/12

Y1 - 2019/12

N2 - 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.

AB - 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.

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DO - 10.1016/j.rinp.2019.102754

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JO - Results in Physics

JF - Results in Physics

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ER -

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

Abstract

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