Metal working – Method of mechanical manufacture – Electrical device making
Patent
1988-12-05
1992-05-12
Gorski, Joseph M.
Metal working
Method of mechanical manufacture
Electrical device making
29872, 228193, H01L 3924
Patent
active
051115743
ABSTRACT:
A method for joining two or more superconducting wires each comprising a bundle of filaments of tin (Sn) and niobium (Nb) contained within a binder metal with a superconducting joint. The filaments on the ends of the wires to be joined are first exposed by etching the binder metal away with acid and then the exposed filaments are intertwined. The exposed filaments are then sealed in a copper-enriched chamber and heated to a temperature and for a time sufficient for the Sn and Nb to diffuse together and form Nb.sub.3 Sn at their interface. Preferably, the filaments are sealed by forming a tubular jacket, placing the tubular jacket over the exposed filaments and the wire ends adjacent thereto, and swaging the ends of the tubular jacket to the wire ends adjacent the exposed filaments. The jacket can be formed by obtaining wire comprising a thick outer layer and a thin inner layer of copper separated by a thin barrier layer of a material chosen from the group consisting of vanadium, niobium, and tantalum, or the like, all disposed over a tin core, cutting the wire to desired jacket lengths, heating the jacket lengths of the wire to melt the tin cores thereof, and blowing the melted cores from the jacket lengths of the wire to form hollow cored jackets.
REFERENCES:
patent: 3703032 (1972-11-01), Batista
patent: 4631808 (1986-12-01), Jones
patent: 4794688 (1989-01-01), Wada et al.
Gorski Joseph M.
Teledyne Industries Inc.
LandOfFree
Method and apparatus for producing superconducting joints does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and apparatus for producing superconducting joints, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for producing superconducting joints will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2422646