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Fabrication et performance de rubans composites de grandes longueurs en (bismuth-plomb)BCCO/argent.

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

Auteurs : LE LAY L., FRIEND C. M., BEALES T. P.

Résumé

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.

Détails

  • Titre original : Fabrication and performance of long (bismuth-lead)BCCO/silver composite tapes.
  • Identifiant de la fiche : 1998-2122
  • Langues : Anglais
  • Date d'édition : 10/1997
  • Source : Source : Cryogenics/Proc. LTEC, Southampton
    vol. 37; n. 10; 583-587; 11 fig.; 18 ref.

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