Fabrication of large Eu-Ba-Cu-O bulk superconductors for compact NMR magnet

S. Nariki, N. Sakai, I. Hirabayashi, M. Yoshikawa, Y. Itoh, T. Nakamura, H. Utsumi

研究成果: Article査読

4 被引用数 (Scopus)

抄録

We have investigated the fabrication and position dependence of superconducting properties of large melt-textured Eu-Ba-Cu-O bulk superconductors for the purpose of application as a compact NMR magnet. We successfully fabricated c-axis oriented single-grain bulk samples up to 65 mm in diameter by melt-processing under a low oxygen partial pressure. The samples of 32 and 47 mm diameters could trap magnetic fields of 1.4 and 1.7 T at 77 K, respectively. Tc in the sample of 33mm diameter is almost similar throughout the sample. In 65 mm-sized sample, however, Tc and J c lowered in inner region of the sample, leading to lowering of maximum trapped field.

本文言語English
論文番号012238
ジャーナルJournal of Physics: Conference Series
97
1
DOI
出版ステータスPublished - 2008 2 1
外部発表はい

ASJC Scopus subject areas

  • 物理学および天文学(全般)

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