| 摘要 |
<p>This composite barrier-type Nb3Al superconductive multi-core wire material is configured from Nb barrier filaments, Ta barrier filaments, Nb dummy filaments and a sheath of Nb or Ta. Therein, Nb barrier filaments are concentrated in a filament region in the vicinity of a core formed by the Nb dummy filaments, and the outer periphery, extending from the outside of these Nb barrier filaments to the sheath of Nb or Ta, is filled with either the Ta barrier filaments alone or the Ta barrier filaments with Nb barrier filaments dispersed therein.</p> |
