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Title: Precursor composites for oxygen dispersion hardened silver sheathed superconductor composites

Abstract

An oxide superconductor composite having improved texture and durability. The oxide superconductor composite includes an oxide superconductor phase substantially surrounded with/by a noble metal matrix, the noble metal matrix comprising a metal oxide in an amount effective to form metal oxide domains that increase hardness of the composite. The composite is characterized by a degree of texture at least 10% greater than a comparable oxide superconductor composite lacking metal oxide domains. An oxide superconducting composite may be prepared by oxidizing the precursor composite under conditions effective to form solute metal oxide domains within the silver matrix and to form a precursor oxide in the precursor alloy phase; subjecting the oxidized composite to a softening anneal under conditions effective to relieve stress within the noble metal phase; and converting the oxide precursor into an oxide superconductor.

Inventors:
 [1]
  1. Natick, MA
Issue Date:
Research Org.:
American Superconductor Corp., Westborough, MA (United States)
OSTI Identifier:
872343
Patent Number(s):
5914297
Assignee:
American Superconductor Corp (Westborough, MA)
Patent Classifications (CPCs):
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
H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01L - SEMICONDUCTOR DEVICES
DOE Contract Number:  
FG02-93ER81605
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
precursor; composites; oxygen; dispersion; hardened; silver; sheathed; superconductor; oxide; composite; improved; texture; durability; phase; substantially; surrounded; noble; metal; matrix; comprising; amount; effective; form; domains; increase; hardness; characterized; degree; 10; comparable; lacking; superconducting; prepared; oxidizing; conditions; solute; alloy; subjecting; oxidized; softening; anneal; relieve; stress; converting; superconducting composite; alloy phase; conditions effective; oxide superconducting; metal matrix; metal oxide; noble metal; form metal; amount effective; oxide superconductor; superconductor composite; matrix comprising; oxide precursor; metal phase; phase substantially; superconductor phase; /505/428/

Citation Formats

Podtburg, Eric R. Precursor composites for oxygen dispersion hardened silver sheathed superconductor composites. United States: N. p., 1999. Web.
Podtburg, Eric R. Precursor composites for oxygen dispersion hardened silver sheathed superconductor composites. United States.
Podtburg, Eric R. Fri . "Precursor composites for oxygen dispersion hardened silver sheathed superconductor composites". United States. https://www.osti.gov/servlets/purl/872343.
@article{osti_872343,
title = {Precursor composites for oxygen dispersion hardened silver sheathed superconductor composites},
author = {Podtburg, Eric R},
abstractNote = {An oxide superconductor composite having improved texture and durability. The oxide superconductor composite includes an oxide superconductor phase substantially surrounded with/by a noble metal matrix, the noble metal matrix comprising a metal oxide in an amount effective to form metal oxide domains that increase hardness of the composite. The composite is characterized by a degree of texture at least 10% greater than a comparable oxide superconductor composite lacking metal oxide domains. An oxide superconducting composite may be prepared by oxidizing the precursor composite under conditions effective to form solute metal oxide domains within the silver matrix and to form a precursor oxide in the precursor alloy phase; subjecting the oxidized composite to a softening anneal under conditions effective to relieve stress within the noble metal phase; and converting the oxide precursor into an oxide superconductor.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1999},
month = {1}
}

Patent:

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