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DOMINATED FACTORS FOR CRITICAL CURRENT DENSITY B CHARACTERISTICS OF BISMUTH-BASED HIGH-CRITICAL TEMPERATURE SUPERCONDUCTING WIRES.

[In Japanese. / En japonais.]

Author(s) : HIKATA T.

Type of article: Article

Summary

BIPBSRCACUO SILVER SHEATHED HIGH CRITICAL TEMPERATURE SUPERCONDUCTING WIRES WERE FABRICATED THROUGH THE SOLID REACTION METHOD. MAXIMUM CRITICAL CURRENT DENSITY IS 30,000 A/CM2 AT 77.3 K IN A ZERO MAGNETIC FIELD, 15,000 A/CM2 AT 0.1 TESLA, AND 330 A/CM2 AT 1 TESLA. THE MAGNETIC FIELD DEPENDENCE OF CRITICAL CURRENT DENSITY-B IS DOMINATED BY THE LORENTZ FORCE WHICH WORKS PERPENDICULAR TO THE C-AXIS, CAUSED BY THE TRANSPORT CURRENT WITH C-AXIS COMPONENT CROSSING GRAIN BOUNDARIES WHEN THE MAGNETIC FIELD WAS APPLIED PARALLEL TO THE PLANE OF THE WIRE. WHILE, WHEN THE MAGNETIC FIELD WAS APPLIED PERPENDICULAR TO THE PLANE, IT WAS DOMINATED BY THE PINNING FORCE IN THE GRAINS.

Details

  • Original title: [In Japanese. / En japonais.]
  • Record ID : 1991-1991
  • Languages: Japanese
  • Source: Cryogenics/ Cryog. Eng. - vol. 25 - n. 3
  • Publication date: 1990
  • Document available for consultation in the library of the IIR headquarters only.

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