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

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

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

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. T c in the sample of 33mm diameter is almost similar throughout the sample. In 65 mm-sized sample, however, T c and J c lowered in inner region of the sample, leading to lowering of maximum trapped field.

Original languageEnglish
Article number012238
JournalJournal of Physics: Conference Series
Volume97
Issue number1
DOIs
Publication statusPublished - 2008 Feb 1
Externally publishedYes

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magnets
nuclear magnetic resonance
fabrication
partial pressure
traps
oxygen
magnetic fields

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Fabrication of large Eu-Ba-Cu-O bulk superconductors for compact NMR magnet. / Nariki, S.; Sakai, Naomichi; Hirabayashi, I.; Yoshikawa, M.; Itoh, Y.; Nakamura, T.; Utsumi, H.

In: Journal of Physics: Conference Series, Vol. 97, No. 1, 012238, 01.02.2008.

Research output: Contribution to journalArticle

Nariki, S. ; Sakai, Naomichi ; Hirabayashi, I. ; Yoshikawa, M. ; Itoh, Y. ; Nakamura, T. ; Utsumi, H. / Fabrication of large Eu-Ba-Cu-O bulk superconductors for compact NMR magnet. In: Journal of Physics: Conference Series. 2008 ; Vol. 97, No. 1.
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