Process for making composite high temperature superconductor copper wires

Patent · Tue Dec 31 04:00:00 EST 1991

OSTI ID:5653517

Engler, E M; Kodas, T T; Lee, V Y

This patent describes a process for forming a composite high temperature superconductor copper wire. It comprises forming submicron sized droplets of an aqueous solution of nitrates containing the desired amounts of cations to form a high temperature ceramic superconductor; carrying the droplets in an oxygen flow through an oven at about 900{degrees}--1,100{degrees} C to form a submicron sized powder which is superconducting; directing the powder through a length of copper tubing to coat the interior wall of the tubing with a uniform compact film of the powder; and sintering the powder while passing oxygen at 700{degrees}--1,000{degrees} C through the tube and while maintaining the outside of the tube in an inert atmosphere.

• Assignee: International Business Machines Corp., Armonk, NY (United States)
• Patent Number(s): US 5077267; A
• Application Number: PPN: US 7-217925
• OSTI ID: 5653517
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360201* -- Ceramics
Cermets
& Refractories-- Preparation & Fabrication
AQUEOUS SOLUTIONS
CATIONS
CHARGED PARTICLES
COMPOSITE MATERIALS
COPPER
DISPERSIONS
DROPLETS
ELEMENTS
FABRICATION
FLUID FLOW
FURNACES
HIGH-TC SUPERCONDUCTORS
IONS
MATERIALS
METALS
MIXTURES
NITRATES
NITROGEN COMPOUNDS
NONMETALS
OXYGEN
OXYGEN COMPOUNDS
PARTICLES
POWDERS
SINTERING
SIZE
SOLUTIONS
SUPERCONDUCTING COMPOSITES
SUPERCONDUCTING WIRES
SUPERCONDUCTORS
SYNTHESIS
TEMPERATURE RANGE
TEMPERATURE RANGE 0400-1000 K
TEMPERATURE RANGE 1000-4000 K
TRANSITION ELEMENTS
TUBES
WIRES