Making a super conductor

Details Making a super conductor Making a super conductor

1979-01-18

1980-01-01

Rutledge, L. Dewayne

Metal treatment

Process of modifying or maintaining internal physical...

Magnetic materials

29599, 148 203, 266250, 266259, 427383D, C21D 100, H01V 1100

Patent

active

041815432

ABSTRACT:
A super conductor is made by first shaping a copper strip carrying a niobium layer into a corrugated tube; thereafter tin is deposited on the tube which is coiled, hung from a ceramic rod and placed into an annealing furnace being evacuated thereafter, the interior of the tube is sealed off from the interior of the furnace. After, e.g. two hours of heating for causing the tin to diffuse into the niobium, a sufficiently thick layer of Nb.sub.3 Sn has developed and a cold inert gas is flushed through the tube to rapidly cool the tube while retaining it in the evacuated but no longer heated furnace.

REFERENCES:
patent: 3623221 (1971-11-01), Morton et al.
patent: 3626585 (1971-12-01), Hammer et al.
patent: 3644987 (1972-02-01), Scheffler et al.
patent: 3866315 (1975-02-01), Ziemek
patent: 3873799 (1975-03-01), Scheffler et al.
patent: 3876473 (1975-04-01), McDougall
patent: 4008102 (1977-02-01), Muller et al.
patent: 4010047 (1977-03-01), Frohmader et al.
patent: 4050147 (1977-09-01), Winter et al.

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