Compound superconducting wire and method of manufacturing the sa

Details Compound superconducting wire and method of manufacturing the sa Compound superconducting wire and method of manufacturing the sa

1990-10-26

1992-03-31

Roy, Upendra

Metal treatment

Compositions

Heat treating

148 115Q, 428614, 428930, 420901, H01B 1200, H01L 3900

Patent

active

051004810

ABSTRACT:
A composite member is prepared which comprises a core which will have a compound superconducting layer when heat-treated, and a stock for forming a stabilizing member made of copper and surrounding the core. The composite member is heat-treated in an oxidizing atmosphere, thus forming a copper-oxide thin layer on the surface of the stock. Thereafter, the composite member is heat-treated in a non-oxidizing atmosphere or in an atmosphere having an oxygen partial pressure which is too low to allow the forming of copper oxide. As a result, a compound superconducting wire is made which comprises a member including a compound superconductor, a diffusion-preventing layer made of oxide and surrounding the member, and a stabilizing member made of copper and surrounding the layer.

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"Superconductor Materials Science-Metallurgy, Fabrication, and Applications" by M. Suenaga; pp. 201-209.

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