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Method of forming a ceramic superconducting composite wire using a molten pool

Patent ·
OSTI ID:5550996
; ;
This paper describes a method for making a flexible superconductive composite wire. It comprises: drawing a wire of noble metal through a molten material, formed by melting a solid formed by pressing powdered Bi{sub 2}O{sub 3}, CaCO{sub 3} SrCO{sub 3} and CuO in a ratio of components necessary for forming a Bi-Sr-Ca-Cu-O superconductor, into the solid and sintering at a temperature in the range of 750{degrees} - 800{degrees}C. for 10-20 hours, whereby the wire is coated by the molten material; and cooling the coated wire to solidify the molten material to form the superconductive flexible composite wire without need of further annealing.
Assignee:
Board of Trustees of Leland Stanford Junior Univ., Stanford, CA (United States)
Patent Number(s):
A; US 5070071
Application Number:
PPN: US 7-255792
OSTI ID:
5550996
Country of Publication:
United States
Language:
English

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Related Subjects

36 MATERIALS SCIENCE
360201 -- Ceramics
Cermets
& Refractories-- Preparation & Fabrication
360207 -- Ceramics
Cermets
& Refractories-- Superconducting Properties-- (1992-)
665412* -- Superconducting Devices-- (1992-)
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ALKALINE EARTH METAL COMPOUNDS
BISMUTH COMPOUNDS
BISMUTH OXIDES
CALCIUM CARBONATES
CALCIUM COMPOUNDS
CALCIUM OXIDES
CARBON COMPOUNDS
CARBONATES
CHALCOGENIDES
CHEMICAL REACTION KINETICS
COMPOSITE MATERIALS
COOLING
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
FABRICATION
HOT PRESSING
KINETICS
MATERIALS
MATERIALS WORKING
MELTING
OXIDES
OXYGEN COMPOUNDS
PHASE TRANSFORMATIONS
PHYSICAL PROPERTIES
POWDERS
PRESSING
REACTION KINETICS
SINTERING
STRONTIUM CARBONATES
STRONTIUM COMPOUNDS
SUPERCONDUCTING COMPOSITES
SUPERCONDUCTING WIRES
SUPERCONDUCTIVITY
WIRES