Direct measurements of mechanical properties for large-grain bulk superconductors

T. Miyamoto, K. Nagashima, N. Sakai, M. Murakami

研究成果: Article査読

43 被引用数 (Scopus)

抄録

Large single-grain bulk RE-Ba-Cu-O (RE: rare earth elements) superconductors with high Jc values can trap magnetic fields much greater than conventional permanent magnets. At present, the maximum trapped fields are essentially limited by the mechanical property of RE-Ba-Cu-O, and therefore, its improvement is critically important. In this study, we measured mechanical properties of large-grain Y-Ba-Cu-O and Sm-Ba-Cu-O bulk superconductors by monitoring the strain with the gauges directly mounted onto the sample surface. The stress was applied to the samples by reducing the external field from 10 to 0 T at 50 K. It is found that the present strain gauge method is useful for direct characterization of mechanical properties of large grain materials. It is also confirmed that Ag addition is effective in improving the mechanical properties of large block Y-Ba-Cu-O and Sm-Ba-Cu-O.

本文言語English
ページ(範囲)41-50
ページ数10
ジャーナルPhysica C: Superconductivity and its applications
340
1
DOI
出版ステータスPublished - 2000 11 15
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

「Direct measurements of mechanical properties for large-grain bulk superconductors」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