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Title: Superconductive wire

A superconductive article is made by inserting a rigid mandrel into an internal cavity of a first metallic tube, said tube having an interior surface and an exterior surface, said interior surface defining the interior cavity, forming a layer of a superconductive material or superconductive precursor upon the exterior surface of said first metallic tube, machining the layer of superconductive material or superconductive precursor to a predetermined diameter to form an intermediate article configured for insertion into a second metallic tube having an interior diameter corresponding to the predetermined diameter, inserting the machined intermediate article into a second metallic tube having an internal diameter corresponding to the predetermined diameter of the intermediate article to form a composite intermediate article, reducing or ironing the composite intermediate article to a predetermined cross-sectional diameter, and sintering the reduced or ironed composite intermediate article at temperatures and for time sufficient for the superconductive material or superconductive precursor to exhibit superconductivity. 2 figs.
Inventors:
; ; ;
Issue Date:
OSTI Identifier:
87765
Assignee:
Dept. of Energy, Washington, DC (United States) PTO; SCA: 360101; 360201; 360601; PA: EDB-95:118340; SN: 95001431592
Patent Number(s):
US 5,434,128/A/
Application Number:
PAN: 8-168,331
Contract Number:
W-7405-ENG-36
Resource Relation:
Other Information: PBD: 18 Jul 1995
Research Org:
University of California
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; SUPERCONDUCTING WIRES; FABRICATION; METALS; PRECURSOR; SIZE; SINTERING; MACHINING