Recent progress in melt-processed (Nd-Sm-Gd)Ba2Cu 3Oy superconductors

M. Muralidhar, S. Nariki, M. Jirsa, N. Sakai, M. Murakami

研究成果: Conference article査読

1 被引用数 (Scopus)

抄録

We have prepared (Nd,Sm,Gd)Ba2Cu3Oy "NSG-123" with various contents of (Nd,Sm,Gd)2BaCuO 5 "NSG-211" or Gd2BaCuO5 "Gd-211" with the aim of optimizing flux pinning. Microstructure observed by transmission electron microscopy exhibited a high density of RE-rich RE1+x Ba2-xCu3Oy (RE-123ss) clusters with their size and dispersion depending on the initially added 211 content. Gd-211 10 mol% distributed as small clusters ranging from 3 to 10 nm in size enhanced pinning at intermediate fields. The magnetization measurements suggested that the optimum oxygen pressure during melt-growth process for this system was around 1% pO2. It was confirmed that this material can be grown into single domain more then 40 mm in diameter.

本文言語English
ページ(範囲)473-478
ページ数6
ジャーナルPhysica C: Superconductivity and its applications
392-396
PART 1
DOI
出版ステータスPublished - 2003 10月
外部発表はい
イベントProceedings of the 15th International Symposium on Superconduc - Yokohama, Japan
継続期間: 2002 11月 112002 11月 13

ASJC Scopus subject areas

  • 電子材料、光学材料、および磁性材料
  • 凝縮系物理学
  • エネルギー工学および電力技術
  • 電子工学および電気工学

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