Mechanical properties of bulk superconductors

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

Research output: Contribution to journalConference articlepeer-review

34 Citations (Scopus)


Recent advancement in the bulk fabrication process has enabled the production of large single-grain bulk RE-Ba-Cu-O superconductors with high Jc values, which can trap fields much higher than those associated with conventional permanent magnets. However, a large electromagnetic force acts on the bulk superconductors when they trap a large field, which sometimes leads to fatal fracture. In this study, we measured mechanical properties of single-domain Y-Ba-Cu-O and Sm-Ba-Cu-O bulk superconductors from the output of strain gauges glued directly to the sample surface. The stress was applied to the samples by reducing the external fields from 10 to 0 T at 50 K. It was found that Ag addition is effective in improving the mechanical properties of melt processed Y-Ba-Cu-O and Sm-Ba-Cu-O.

Original languageEnglish
Pages (from-to)816-819
Number of pages4
JournalSuperconductor Science and Technology
Issue number6
Publication statusPublished - 2000 Jun 1
Externally publishedYes
EventThe 2nd International Workshop on the Processing and Applications of Superconducting (RE)CBO Large Grain Materials - Morioka, Jpn
Duration: 1999 Oct 191999 Oct 22

ASJC Scopus subject areas

  • Ceramics and Composites
  • Condensed Matter Physics
  • Metals and Alloys
  • Electrical and Electronic Engineering
  • Materials Chemistry


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