Title :
Development of 12 T-10 Al-stabilized Nb3Sn conductor for TMC-II
Author :
Takahashi, Y. ; Ando, T. ; Hiyama, T. ; Tsuji, H. ; Tada, E. ; Nishi, M. ; Yoshida, K. ; Okuno, K. ; Koizumi, K. ; Nakajima, H. ; Kato, T. ; Kawano, K. ; Oshikir, M. ; Hattor, Y. ; Takahahi, R. ; Kamiya, S. ; Ohgane, Y. ; Shimamoto, S.
Author_Institution :
Atomic Energy Research Institute, Tokai-mura, Naka-machi, Ibaraki-ken, Japan
fDate :
3/1/1985 12:00:00 AM
Abstract :
The Al-stabilized Nb3Sn strand has been successfully fabricated and Jcvalue of 400 A/mm2at 12 T is obtained on condition that Nb3Sn is reacted at 625°C for 200 hr. Overall residual resistivity of this strand is lowered to 77 % of that of the Cu-stabilized Nb3Sn strand (TMC-I)1,2at 12 T by Al-stabilizer. The 12 T-10 kA cable-in-conduit conductor, fabricated by this strands, is charged up to 20 kA at 8.7 T without appearance of normal zone. From these experimental results, this conductor satisfies almost the specification of the present target conductor (TMC-II)3.
Keywords :
Superconducting cables; Aluminum; Conductors; Copper; Critical current density; Electric resistance; Magnetic field measurement; Manufacturing; Niobium; Niobium-tin; Thickness measurement;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.1985.1063644
