Magnetic flux penetration of commercial Bi2223 wires evaluated by magneto-optical imaging

H. Akiyama, Y. Tsuchiya, S. Pyon, T. Tamegai

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)

Abstract

We have evaluated magnetic field penetrations into commercial Bi2223 wires fabricated by high-pressure sintering process. Magneto-optical imaging with high-spatial resolution has been applied for that purpose. It is found that there are inhomogeneous couplings between filaments, which can lead to inhomogeneous and complicated current flow in the wire. We also found defects running oblique to the filaments, possibly created during the rolling process of the wire.

Original languageEnglish
Pages (from-to)65-68
Number of pages4
JournalPhysica C: Superconductivity and its applications
Volume504
DOIs
Publication statusPublished - 2014 Sept 15
Externally publishedYes

Keywords

  • Bi2223
  • Critical current density
  • Magneto-optical imaging
  • Superconducting wires

ASJC Scopus subject areas

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

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