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US 10,840,429 B2Granted
Process for the production of high temperature superconductor wires
AssigneeBASF SE
InventorsRon Feenstra, Mario Sadewasser, Michael Baecker
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Abstract
The present invention is in the field of processes for the production of high temperature super-conductor wires. In particular, the present invention relates to a process for the production of high temperature superconductor wires comprising heating a film comprising yttrium or a rare earth metal, an alkaline earth metal, and a transition metal to a temperature of at least 700° C. and cooling the film to a temperature below 300° C., wherein the heating and cooling is per-formed at least twice.
Claims11
A process for producing high temperature superconductor wires, the process comprising
- heating a film comprising yttrium or a rare earth metal, an alkaline earth metal, and a transition metal to a temperature of at least 700° C. and cooling the film to a temperature below 300° C.,
- wherein the heating and cooling is performed at least twice and a partial pressure of water during a first heating to a temperature of at least 700° C., denoted P1,w, a total pressure during the first heating to the temperature of at least 700° C., denoted P1, a partial pressure of water during a second heating to a temperature of at least 700° C., denoted P2,w, and a total pressure during the second heating to the temperature of at least 700° C., denoted P2, fulfill the relationship:
- P
- 1
- ,
- W
- P
- 1
- <
- P
- 2
- ,
- W
- P
- 2
- when P1,w, P1, P2,w and P2 are expressed in mbar.
13 more elements
Dependencies are inferred from the claim text.