Melt processing and properties of LRE-Ba-Cu-O bulk superconductors

Sang Im Yoo, Takamitsu Higuchi, Hiroyuki Fujimoto, Masato Murakami

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Light rare earth (LRE)-Ba-Cu-O (LREBCO, LRE: Nd, Sm, Eu, Gd) bulk superconductors melt-processed in a reduced oxygen atmosphere are very promising for high field application as a superconducting permanent magnet with the liquid nitrogen refrigeration. Compared to a good quality melt-grown Y-Ba-Cu-O (YBCO) bulk, LREBCO bulks exhibit larger critical current density (J c) in high magnetic field and much improved irreversibility field (H irr) at 77 K, implying that more effective flux pinning can be realized in a commercially feasible way. In this paper, we report melt processing for LREBCO bulk superconductors and their characteristic superconducting properties.

Original languageEnglish
Pages (from-to)141-146
Number of pages6
JournalQuarterly Report of RTRI (Railway Technical Research Institute) (Japan)
Volume38
Issue number3
Publication statusPublished - 1997
Externally publishedYes

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Keywords

  • Critical current density
  • Flux pinning
  • LRE-Ba-Cu-O superconductor
  • Melt processing
  • Trapped magnetic field

ASJC Scopus subject areas

  • Transportation
  • Mechanical Engineering

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