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Structure fibreuse et densité de courant critique de fil supraconducteur de MgB2.

Fibrous structure and critical current density of MgB2 superconducting wire.

Auteurs : UCHIYAMA D., MIZUNO K., AKAO T., et al.

Type d'article : Article

Résumé

A novel MgB2 superconducting wire has been fabricated by the in situ powder-in-tube method with fine B powders and coarse Mg ones. The core of this wire has a fibrous structure, which consists of a lot of MgB2 filaments. The critical current density has been found to increase with decreasing a wire size. In addition, it has been revealed from an experiment with a MgB2 tape made by flat-rolling the wire that filament surfaces have a substantial contribution to flux pinning. [Reprinted with permission from Elsevier. Copyright, 2007].

Détails

  • Titre original : Fibrous structure and critical current density of MgB2 superconducting wire.
  • Identifiant de la fiche : 2008-0490
  • Langues : Anglais
  • Source : Cryogenics - vol. 47 - n. 5-6
  • Date d'édition : 05/2007

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