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Title: 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 is disclosed. 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. 8 figs.

Inventors:
; ;
Publication Date:
Research Org.:
Univ. of Chicago, IL (United States)
Sponsoring Org.:
USDOE, Washington, DC (United States)
OSTI Identifier:
321316
Patent Number(s):
US 5,856,277/A/
Application Number:
PAN: 8-657,415
Assignee:
Illinois Superconductor Corp., Mt Prospect, IL (United States) PTO; SCA: 360201; 360202; PA: EDB-99:030389; SN: 99002064449
DOE Contract Number:
W-31109-ENG-38
Resource Type:
Patent
Resource Relation:
Other Information: PBD: 5 Jan 1999
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; SURFACE FINISHING; HIGH-TC SUPERCONDUCTORS; CONTROLLED ATMOSPHERES; MELTING; SOLIDIFICATION; TEXTURE

Citation Formats

Chen, N., Goretta, K.C., and Dorris, S.E. Surface texturing of superconductors by controlled oxygen pressure. United States: N. p., 1999. Web.
Chen, N., Goretta, K.C., & Dorris, S.E. Surface texturing of superconductors by controlled oxygen pressure. United States.
Chen, N., Goretta, K.C., and Dorris, S.E. Tue . "Surface texturing of superconductors by controlled oxygen pressure". United States. doi:.
@article{osti_321316,
title = {Surface texturing of superconductors by controlled oxygen pressure},
author = {Chen, N. and Goretta, K.C. and Dorris, S.E.},
abstractNote = {A method of manufacture of a textured layer of a high temperature superconductor on a substrate is disclosed. 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. 8 figs.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Jan 05 00:00:00 EST 1999},
month = {Tue Jan 05 00:00:00 EST 1999}
}