Submicron-particle ductile superconductor

Details Submicron-particle ductile superconductor Submicron-particle ductile superconductor

1981-08-17

1983-10-25

Andrews, M. J.

Stock material or miscellaneous articles

All metal or with adjacent metals

Having metal particles

428930, 174126S, 174128S, H01B 1200

Patent

active

044119593

ABSTRACT:
A submicron-particle ductile superconductor and method of fabricating the same wherein the submicron particles (e.g., 300 Angstroms) of a superconductor (e.g., NbC) are encapsulated in a metal tube (e.g., copper) and then fabricated down to fine wire in the absence of sintering of reaction annealing. Because of the fluid-like properties of the unsintered submicron-particle powdered core, the composite fabricated wire retains ductility and resistance to fracture while exhibiting superconducting properties approaching those of the bulk material in the core. Multifilamentary composites are obtained by bundling and fabricating the bundle down in a required number of steps.

REFERENCES:
patent: 2888740 (1959-06-01), Danis
patent: 3124455 (1964-03-01), Buettler
patent: 3284562 (1966-11-01), Stebleton
patent: 3471925 (1969-10-01), Bindari
patent: 3496622 (1970-02-01), Borghout
patent: 3796553 (1974-03-01), Daunt
patent: 3817746 (1974-06-01), Tsuei
patent: 4050147 (1977-09-01), Winter
patent: 4127700 (1978-11-01), Stockel
"CRC Handbook of Chemistry and Physics", 60th ed., CRC Press Inc., Boca Raton, Fla. 1979, pp. E86-E89, E99-E100.

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