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Transport critical current density of bismuth-2223 tape.

[In Japanese. / En japonais.]

Author(s) : KOBAYASHI S., KANEKO T., UEYAMA M., HAYASHI K., SATO K.

Type of article: Article

Summary

The essential conditions for superconducting tapes are a high transport critical current density, shape uniformity of long-length tape and mechanical performance. From these points of view, bismuth-2223 superconducting tapes have been considered promising. Short-length tapes with critical current density of 40 kiloA/cm2 and tapes over 1 km in length with critical current density of 20 kiloA/cm2 have been obtained at 77 K. In order to attain highter critical current density values, the authors consider the content of the bismuth-2223 phase, grain alignment, grain connectivity and pinning as important factors of limitation.

Details

  • Original title: [In Japanese. / En japonais.]
  • Record ID : 1999-0027
  • Languages: Japanese
  • Source: Cryogenics/ Cryog. Eng. - vol. 32 - n. 9
  • Publication date: 1997
  • Document available for consultation in the library of the IIR headquarters only.

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