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Bismuth-based oxide superconducting current leads: superconducting properties and heat leakage from 77 to 4.2 K of the tubular bulk leads.

[In Japanese. / En japonais.]

Author(s) : YAMADA Y., HASEBE T., YANAGIYA T., JIKIHARA K., ISHIZUKA M., YASUHARA S., ISHIHARA M.

Type of article: Article

Summary

Superconducting properties of lead-doped superconducting bulk BSCCO have been investigated. The critical-current density of the tubular bulk, approximately inner diameter 10-30 mm and 200 mm long, was indicated more than 1,000 A/cm2 at 77 K under self-magnetic field, and at 4.2 K was indicated as about 2,000 A/cm2 under 15 T. The reasons for improvement of the critical-current density are the formation of high-critical temperature single phase and highly aligned microstructure of the bulk. The heat leakage per a pair of the bulk leads from 77 to 4.2 K has been measured to be 0.16 W at DDC 800 A.

Details

  • Original title: [In Japanese. / En japonais.]
  • Record ID : 1994-0756
  • Languages: Japanese
  • Source: Cryogenics/ Cryog. Eng. - vol. 28 - n. 2
  • Publication date: 1993
  • Document available for consultation in the library of the IIR headquarters only.

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