Making a super conductor
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United States of America Patent
Stats
-
Jan 1, 1980
Grant Date -
N/A
app pub date -
Jan 18, 1979
filing date -
Feb 8, 1978
priority date (Note) -
Expired
status (Latency Note)
Importance
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.
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