Surface texturing of superconductors by controlled oxygen pressure
Abstract
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.
- Inventors:
-
- Downers Grove, IL
- La Grange Park, IL
- Issue Date:
- Research Org.:
- Argonne National Laboratory (ANL), Argonne, IL (United States)
- OSTI Identifier:
- 872081
- Patent Number(s):
- 5856277
- Assignee:
- Illinois Superconductor Corporation (Mt Prospect, IL)
- Patent Classifications (CPCs):
-
C - CHEMISTRY C04 - CEMENTS C04B - LIME, MAGNESIA
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC Y10S - TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- DOE Contract Number:
- W-31109-ENG-38
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 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/
Citation Formats
Chen, Nan, Goretta, Kenneth C, and Dorris, Stephen E. Surface texturing of superconductors by controlled oxygen pressure. United States: N. p., 1999.
Web.
Chen, Nan, Goretta, Kenneth C, & Dorris, Stephen E. Surface texturing of superconductors by controlled oxygen pressure. United States.
Chen, Nan, Goretta, Kenneth C, and Dorris, Stephen E. Fri .
"Surface texturing of superconductors by controlled oxygen pressure". United States. https://www.osti.gov/servlets/purl/872081.
@article{osti_872081,
title = {Surface texturing of superconductors by controlled oxygen pressure},
author = {Chen, Nan and Goretta, Kenneth C and Dorris, Stephen E},
abstractNote = {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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Fri Jan 01 00:00:00 EST 1999},
month = {Fri Jan 01 00:00:00 EST 1999}
}
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Works referenced in this record:
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journal, July 1990
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Highly textured thick films by a melt‐annealing technique in the Bi‐Sr‐Ca‐Cu‐O system
journal, November 1989
- Xu, Ming; Cornelius, A. L.; Shi, Donglu
- Applied Physics Letters, Vol. 55, Issue 21