Surface texturing of superconductors by controlled oxygen pressure

Patent · Fri Jan 01 00:00:00 EST 1999

OSTI ID:872081

Chen, Nan ^[1]; Goretta, Kenneth C ^[1]; Dorris, Stephen E ^[2]

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1. Downers Grove, IL
2. La Grange Park, IL

A method of manufacture of a textured layer of a high temperature superconductor on a substrate. The method involves providing an untextured high temperature superconductor material having a characteristic ambient pressure peritectic melting point, heating the superconductor to a temperature below the peritectic temperature, establishing a reduced pO.sub.2 atmosphere below ambient pressure causing reduction of the peritectic melting point to a reduced temperature which causes melting from an exposed surface of the superconductor and raising pressure of the reduced pO.sub.2 atmosphere to cause solidification of the molten superconductor in a textured surface layer.

• Research Organization: Argonne National Laboratory (ANL), Argonne, IL (United States)
• DOE Contract Number: W-31109-ENG-38
• Assignee: Illinois Superconductor Corporation (Mt Prospect, IL)
• Patent Number(s): US 5856277
• OSTI ID: 872081
• Country of Publication: United States
• Language: English

Related Subjects

surface
texturing
superconductors
controlled
oxygen
pressure
method
manufacture
textured
layer
temperature
superconductor
substrate
involves
providing
untextured
material
characteristic
ambient
peritectic
melting
heating
below
establishing
reduced
atmosphere
causing
reduction
causes
exposed
raising
solidification
molten
exposed surface
textured surface
temperature superconductor
temperature below
method involves
surface layer
involves providing
reduced temperature
superconductor material
oxygen pressure
ambient pressure
textured layer
method involve
peritectic melt
/505/427/