Improved superconducting properties due to Ag2O addition in NEG-123

M. Muralidhar, M. Murakami

研究成果: Article査読

6 被引用数 (Scopus)

抄録

We prepared NEG + 10 mol% NEG-211 + 0.5 mol% Pt with 0-50 wt.% Ag2O, which are subjected to the oxygen-controlled melt-growth process. Microstructural observation showed that fine Ag particles are dispersed at lower Ag2O contents. At higher contents, Ag particles exhibited various sizes and shapes and segregated mostly in the vicinity of microcracks and pores. The irreversibility field increased with Ag2O content up to 20 wt.%, and even with 50 wt.% the magnetization loop was open at 77 K and 7 T. In the sample with 20 wt.% of Ag2O, a large critical current density of 10 kA cm-2 was recorded even at 7 T and 77 K with the field applied parallel to the c-axis of the sample.

本文言語English
ページ(範囲)657-660
ページ数4
ジャーナルPhysica C: Superconductivity and its applications
357-360
SUPPL. 2
DOI
出版ステータスPublished - 2001 8月
外部発表はい

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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