Precursor composites for oxygen dispersion hardened silver sheathed superconductor composites
- Natick, MA
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.
- Research Organization:
- American Superconductor Corp., Westborough, MA (United States)
- DOE Contract Number:
- FG02-93ER81605
- Assignee:
- American Superconductor Corp (Westborough, MA)
- Patent Number(s):
- US 5914297
- OSTI ID:
- 872343
- Country of Publication:
- United States
- Language:
- English
Phase Formation and Critical Currents in Bi(2223) Tapes
|
book | January 1995 |
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Related Subjects
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/