Nb.sub.3 Ge superconductive films grown with air

Details Nb.sub.3 Ge superconductive films grown with air Nb.sub.3 Ge superconductive films grown with air

1977-07-18

1978-12-12

Esposito, Michael F.

Metal founding

Process

Disposition of a gaseous or projected particulate molten...

164 55, 164 61, 427 62, 427124, 427250, 427253, 428660, 428668, 29599, 75174, 75134G, B23P 300, C23C 2702

Patent

active

041291662

ABSTRACT:
A superconductive film of Nb.sub.3 Ge is produced by providing within a vacuum chamber a heated substrate and sources of niobium and germanium, reducing the pressure within the chamber to a residual pressure no greater than about 10.sup.-5 mm Hg, introducing air into the resulting evacuated chamber in controlled amounts and vaporizing the niobium and germanium to deposit a film of Nb.sub.3 Ge on the heated substrate.

REFERENCES:
patent: 3400016 (1968-09-01), Enstrom et al.
patent: 3630769 (1971-12-01), Hart
patent: 3661639 (1972-05-01), Caslaw
patent: 3958327 (1976-05-01), Marancik
patent: 4005990 (1977-02-01), Newkirk
patent: 4043888 (1977-08-01), Gavaler
Hallak et al., "Phase Diagram . . . Oxygen & Other Gases," Trans. on Magnetics, vol. MAG-13, No. 1, pp. 311-314 (1-1977).
Hallak et al., "Synthesis . . . by Electron Beam Deposition," App. Physics Lett., vol. 29, No. 5, pp. 314-316 (9-1976).

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