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Fabrication and performance of long (bismuth-lead)BCCO/silver composite tapes.

Author(s) : LE LAY L., FRIEND C. M., BEALES T. P.

Summary

Recent advances in the development of bismuth-2223/silver composite tapes are reviewed. Monofilamentary, 7- and 19-filament tapes were produced by the powder-in-tube route. Control of the mechanical deformation showed that regular filament shapes could be obtained, both transversally and longitudinally. Critical current densities and the n exponent of tapes decreased with increasing length, and both effects could be partly ascribed to a larger defect density in long tapes. Measured alternating-current losses were found to correspond to a geometry intermediate between an ellipse and a thin strip.

Details

  • Original title: Fabrication and performance of long (bismuth-lead)BCCO/silver composite tapes.
  • Record ID : 1998-2122
  • Languages: English
  • Publication date: 1997/10
  • Source: Source: Cryogenics/Proc. LTEC, Southampton
    vol. 37; n. 10; 583-587; 11 fig.; 18 ref.

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