Superconducting Properties of Reacted Mono- and Multi-filament MgB<formula><tex>$_{2}$</tex></formula> Wires with respect to Bending Diameters using a Custom-made Bending Test Probe

Byeongha Yoo, Jungbin Song, Jong Cheol Kim, Young Gyun Kim, Jimam Kim, Ki Hong Sim, Ik Sang Shin, Duck Young Hwang, Haigun Lee

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)

Abstract

This study investigates the superconducting properties of reacted mono- and multi-filament MgB<formula><tex>$_{2}$</tex></formula> wires, manufactured by Kiswire Advanced Technology Co., Ltd., with respect to bending diameter through a three-point bending test method using a lab-made bending test probe. The critical current of the monofilament wire was not degraded as the bending diameter decreased to 30 mm, whereas that of the multi-filament wire initially decreased at a bending diameter of &lt; 210 mm. Moreover, the multifilament wire at a bending diameter of &lt; 210 mm exhibited the existence of a resistive zone within the sample, which was caused by the cracks propagated thoroughly in the transverse direction of the wire. Overall, the mono-filament wires could be utilized in most superconducting applications in terms of the bending diameter, whereas the bending properties of the multi-filament wires should be improved for use in superconducting applications that require a bore size of &lt; 210 mm.

Original languageEnglish
JournalIEEE Transactions on Applied Superconductivity
DOIs
Publication statusAccepted/In press - 2018 Jan 25

Keywords

  • Bending diameter
  • Bending test
  • Integrated circuits
  • MgB2
  • Mono and Multifilamentary superconductors
  • Multifilamentary superconductors
  • Pins
  • Probes
  • Strain
  • Superconducting magnets
  • Wires

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

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