Method for manufacturing an oxide superconducting article
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United States of America Patent
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Apr 6, 1993
Issued Date -
N/A
app pub date -
Oct 25, 1991
filing date -
Mar 13, 1989
priority date (Note) -
Expired
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Abstract
A method for manufacturing a superconducting article, comprising the steps of: forming a first layer comprising a mixture of LnBa.sub.2 Cu.sub.3 O.sub.x and Ln.sub.2 BaCuO.sub.x ' on the surface of a substrate, said Ln being an optional rare earth element; then forming a second layer comprising a mixture of at least CuO and BaCuO.sub.2 on the surface of the first layer; and then melting the mixture in the second layer to cause the resultant melt of the mixture in the second layer to diffusion-react with Ln.sub.2 BaCuO.sub.x ' in the first layer so as to convert the first and second layers into a film of a superconducting substance comprising LnBa.sub.2 Cu.sub.3 O.sub.x ; thereby manufacturing a superconducting article comprising the substrate and the film of the superconducting substance formed on the surface of the substrate.
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