Optimization of ternary LRE-Ba-Cu-O materials for use at liquid oxygen temperature

M. Muralidhar, N. Sakai, M. Jirsa, M. Murakami, N. Koshizuka

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

The paper refers on advances in fabrication of mixed LREBa 2Cu3Oy (LRE: Nd, Sm, Eu, Gd; combinations NEG-123, NSG-123, and SEG-123) composites developed for bulk applications at liquid oxygen temperature. In order to enhance flux pinning over 90 K, we introduced to the 123 systems a ball-milled Gd2BaCuO5 powder in various average sizes ranging from 200 to <70 nm. In all these compounds Zr-rich nanoscale particles were formed that improved magnetic performance up to 90 K. As a result, levitation experiments with these ternary systems cooled by liquid oxygen were performed.

Original languageEnglish
Pages (from-to)575-579
Number of pages5
JournalPhysica C: Superconductivity and its applications
Volume412-414
Issue numberSPEC. ISS.
DOIs
Publication statusPublished - 2004 Oct 1

Keywords

  • Critical current density (J)
  • Flux pinning
  • Levitation at 90 K
  • Melt processing

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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