Length stabilized Nb-Sn wire and annealing method

Details Length stabilized Nb-Sn wire and annealing method Length stabilized Nb-Sn wire and annealing method

1990-05-04

1992-04-14

Dean, R.

Stock material or miscellaneous articles

All metal or with adjacent metals

Laterally noncoextensive components

428930, H01L 3914

Patent

active

051047462

ABSTRACT:
A method for contraction annealing niobium-tin wire is disclosed. An improved niobium-tin wire is provided by loosely winding the wire on a mandrel, or by coiling the wire on a circumferentially retractile mandrel, and contraction annealing the wire without reaction-forming substantial amounts of Nb.sub.3 Sn. Such contraction annealing allows the wire to contract in length unconstrained thereby preventing the formation of internal tensile stresses in the wire and its surrounding insulation. Prevention of internal stresses in the wire greatly reduces the susceptibility of the wire to breakage, cracking, sintering, shorting, tin leakage, or substantial shifting of the wire from desired wrap positions when it is reaction annealed to form the brittle super-conducting intermetallic compound Nb.sub.3 Sn.

REFERENCES:
patent: 4983228 (1991-01-01), Taub et al.

Affiliated with

Also associated with

Rating

Length stabilized Nb-Sn wire and annealing method does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Length stabilized Nb-Sn wire and annealing method, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Length stabilized Nb-Sn wire and annealing method will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2348387