Resin-impregnated bulk RE-Ba-Cu-O current leads for the superconducting magnet on maglev train

M. Tomita, K. Nagashima, T. Herai, Masato Murakami

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

Bulk RE-Ba-Cu-O (RE: rare earth elements) superconductors exhibit high critical current density (Jc) and low thermal conductivity, that are the characteristics desired for the current lead applications. In this study, we studied whether the resin-impregnated Y-Ba-Cu-O rods can be used as the current lead for the superconducting magnet on a magnetically levitated train. The fatigue test showed that the mechanical properties of resin-impregnated Y-Ba-Cu-O rods are sufficiently good for maglev applications. We could also pass the electric currents of 500 A without heat generation. This was further confirmed by field distribution measurements, which showed that the superconducting state of the current lead was well maintained when the currents of 500 A were passed.

Original languageEnglish
Pages (from-to)1216-1220
Number of pages5
JournalPhysica C: Superconductivity and its Applications
Volume372-376
Issue numberPART 2
DOIs
Publication statusPublished - 2002 Aug
Externally publishedYes

Fingerprint

Superconducting magnets
superconducting magnets
resins
Resins
Lead
Critical current density (superconductivity)
Heat generation
Electric currents
Rare earth elements
Superconducting materials
Thermal conductivity
rods
Fatigue of materials
Mechanical properties
fatigue tests
heat generation
electric current
critical current
thermal conductivity
rare earth elements

Keywords

  • Bulk
  • Current lead
  • Epoxy resins
  • Mechanical strength
  • Superconductor
  • Trapped magnetic field

ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this

Resin-impregnated bulk RE-Ba-Cu-O current leads for the superconducting magnet on maglev train. / Tomita, M.; Nagashima, K.; Herai, T.; Murakami, Masato.

In: Physica C: Superconductivity and its Applications, Vol. 372-376, No. PART 2, 08.2002, p. 1216-1220.

Research output: Contribution to journalArticle

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