Title :
Highly strengthened multifilamentary (Nb,Ti)3Sn wires stabilized with CuNb composite
Author :
Watanabe, K. ; Awaji, S. ; Katagiri, K. ; Noto, K. ; Goto, K. ; Sugimoto, M. ; Saito, T. ; Kohno, O.
Author_Institution :
Inst. of Mater. Res., Tohoku Univ., Sendai, Japan
fDate :
7/1/1994 12:00:00 AM
Abstract :
Multifilamentary (Nb,Ti)3Sn superconducting wires with reinforcing stabilizer of CuNb composite, CuNb/(Nb,Ti)3Sn, were developed. The outstanding point is that the 0.2% proof stress at 4.2 K in CuNb/(Nb,Ti)3Sn was extremely improved to 320 MPa even after the heat treatment at 670°C for 192 hours, which is 1.8 times higher than that in ordinary Cu/(Nb,Ti)3Sn. The overall Jc value in CuNb/(Nb,Ti)3Sn was obtained to be 110 A/mm2 at 16 T and 4.2 K. These results show that the bronze processed multifilamentary (Nb,Ti)3Sn superconducting wire with CuNb reinforcing stabilizer is actually employable for a high field superconducting magnet
Keywords :
composite superconductors; niobium alloys; superconducting magnets; superconducting materials; tin alloys; titanium alloys; 0.2% proof stress; CuNb-composite stabilisation; bronze processed multifilamentary superconducting wire; heat treatment; high field superconducting magnet; highly strengthened multifilamentary Nb3Sn wires; highly strengthened multifilamentary Ti3Sn wires; overall Jc value; reinforcing stabilizer; Annealing; Composite materials; Heat treatment; Niobium; Stress; Superconducting filaments and wires; Superconducting magnets; Superconducting materials; Temperature; Tin;
Journal_Title :
Magnetics, IEEE Transactions on
