Process for forming superconductor precursor
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United States of America Patent
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Jul 23, 1991
Grant Date -
N/A
app pub date -
Dec 22, 1989
filing date -
Dec 22, 1989
priority date (Note) -
Expired
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Abstract
The invention provides a process for production of silver-containing precursor alloys to oxide superconductors, said alloys having reduced amounts of intermetallics. Powders containing metallic elemental components of an oxide superconductor are high energy milled for a predetermined amount of time to increase homogeneity of the mixed metallic elemental components of the oxide superconductor. Silver is then high energy milled into the metallic components. The mixed silver and metallic elemental components of the oxide superconductor are compacted for the silver-containing superconductor precursor. The compacted powder is preferably hot worked at a temperature of at least 50% of the precursor alloy's melting temperature in degrees Kelvin.
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