Enhancement of critical current density of Dy-Ba-Cu-O bulk superconductor by the refinement of Dy211 particles

S. Nariki, N. Sakai, M. Murakami

研究成果: Article査読

22 被引用数 (Scopus)

抄録

We have studied the relationship between the particle size of Dy2BaCuO5 (Dy211) starting powder in the precursor and the particle size of Dy211 inclusions trapped in the melt-textured bulk Dy-Ba-Cu-O. The mean diameter of Dy211 particles trapped in the DyBa2Cu3Oy could be reduced with decreasing the particle size of Dy211 starting powder. The Jc was increased with reducing the size of Dy211 secondary phase. The Jc of the bulk Dy-Ba-Cu-O sample with fine Dy211 inclusions 0.6 μm in size exhibited about 70 000 A/cm2 at 77 K and self-field. Large c-axis oriented Dy-Ba-Cu-O/Ag bulk sample could also be fabricated with the top-seeded melt-growth process in air. The trapped magnetic fields of the bulks with the diameters of 32 and 48 mm reached high values of 1.4 and 1.7 T at 77 K, respectively.

本文言語English
ページ(範囲)814-816
ページ数3
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
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

フィンガープリント

「Enhancement of critical current density of Dy-Ba-Cu-O bulk superconductor by the refinement of Dy211 particles」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル