Improved superconducting properties due to Ag2O addition in NEG-123

研究成果: Article

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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.

ジャーナルPhysica C: Superconductivity and its applications
発行部数SUPPL. 2
出版物ステータスPublished - 2001 8 1

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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