Method of manufacture of multifilamentary intermetallic supercon

Details Method of manufacture of multifilamentary intermetallic supercon Method of manufacture of multifilamentary intermetallic supercon

1982-09-29

1983-10-25

Stallard, W.

Metal treatment

Compositions

Heat treating

29599, 148 115P, 148 115F, 148 115C, H01L 3924

Patent

active

044117124

ABSTRACT:
An improved method for manufacture of multifilamentary superconductors of the A.sub.3 B type having the A-15 crystal structure, such as Nb.sub.3 Sn, is disclosed in which rods or wires of the A material are disposed throughout a matrix consisting of Cu and the B material in substantially elemental form. The matrix is formed by compaction of powders of Cu; powders of the B may be mixed therewith or the B material may be infiltrated into pores between the individual Cu particles after compaction. The resultant composite has A, B and Cu distributed uniformly throughout its volume and can be worked to any desired final shape and size for heat treatment to form the A.sub.3 B material without intermediate annealing steps.

REFERENCES:
patent: 3277557 (1966-10-01), Ham
patent: 3472705 (1969-10-01), Gregory
patent: 3496622 (1970-02-01), Berghout et al.
patent: 3509622 (1970-05-01), Bernert
patent: 3541680 (1970-11-01), Verrijp
patent: 4044457 (1977-08-01), Strauss
patent: 4223434 (1980-09-01), Wang et al.
Patent Abstracts of Japan, vol. 2, No. 33, Section E, Mar. 6, 1978.

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