Mechanical properties of bulk superconductors

T. Miyamoto, K. Nagashima, Naomichi Sakai, Masato Murakami

Research output: Contribution to journalArticle

29 Citations (Scopus)

Abstract

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
Volume13
Issue number6
DOIs
Publication statusPublished - 2000 Jun
Externally publishedYes

Fingerprint

Superconducting materials
mechanical properties
Mechanical properties
traps
strain gages
Strain gages
permanent magnets
Permanent magnets
electromagnetism
Fabrication
fabrication
output

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Physics and Astronomy (miscellaneous)
  • Condensed Matter Physics

Cite this

Mechanical properties of bulk superconductors. / Miyamoto, T.; Nagashima, K.; Sakai, Naomichi; Murakami, Masato.

In: Superconductor Science and Technology, Vol. 13, No. 6, 06.2000, p. 816-819.

Research output: Contribution to journalArticle

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