Title :
Superconducting and mechanical properties of jelly-roll processed Cu/Nb/sub 3/Al conductors
Author :
Murase, S. ; Shimamoto, S. ; Yamada, Y. ; Kumano, Tatsuo ; Yamaguchi, Naoto
Author_Institution :
Dept. of Electr. Eng., Tohoku Univ., Sendai, Japan
fDate :
3/1/2000 12:00:00 AM
Abstract :
In order to fabricate a compact cryocooled-magnet jellyroll-processed Cu/Nb/sub 3/Al conductors have been developed. The conductors containing Nb-rich Nb/Al ratio and alumina-Cu performed good ductility and high J/sub c/ of 775 A/mm/sup 2/ at 12 T and 4.2 K. The conductor showed reduction of hysteresis loss as the filament diameter decreased. The authors discuss difference in superconducting and mechanical properties between Nb/sub 3/Al and Nb/sub 3/Sn.
Keywords :
aluminium alloys; copper; ductility; magnetic hysteresis; mechanical properties; niobium alloys; type II superconductors; Cu-Nb/sub 3/Al; filament diameter; good ductility; hysteresis loss; jelly-roll processed Cu/Nb/sub 3/Al conductors; mechanical properties; superconducting and mechanical properties; Conductors; Critical current; Hysteresis; Loss measurement; Mechanical factors; Niobium; Niobium-tin; Superconductivity; Temperature; Wire;
Journal_Title :
Applied Superconductivity, IEEE Transactions on
