Design of microstructure in melt-textured bulk superconductors with the employment of granules containing ultra-fine Y2BaCuO5 particles

S. Nariki, N. Sakai, M. Murakami, I. Hirabayashi

研究成果: Conference article

2 引用 (Scopus)

抜粋

In melt-textured RE-Ba-Cu-O bulk superconductors, an excessive size reduction of RE211 inclusions results in inhomogeneous distribution of RE211 particles. To reduce such inhomogeneity, we attempted to combine granules containing fine RE211 into the melt-textured RE123 materials. First, we prepared Y-Ba-Cu-O granules containing Y123 and ultra-fine Y211 (0.1 μm in size) powders with organic binder. The size of the granules was about 1.0 mm. Next, Dy-Ba-Cu-O powders containing Dy123 and Dy211 (2 μm in size) were prepared. The Y-Ba-Cu-O granules and Dy-Ba-Cu-O powder were compacted together and melt-processed in air. We found that fine RE211 inclusions were uniformly distributed in this sample, which led to improved spatial homogeneity in critical currents.

元の言語English
ページ(範囲)532-536
ページ数5
ジャーナルPhysica C: Superconductivity and its applications
426-431
発行部数I
DOI
出版物ステータスPublished - 2005 10 1
イベントProceedings of the 17th International Symposium on Superconductivity (ISS 2004) Advances in Supeconductivity -
継続期間: 2004 11 232004 11 25

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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