Superconductor technology: apparatus – material – process – High temperature – per se – Having tc greater than or equal to 150 k
Patent
1991-05-21
1993-08-03
Lieberman, Paul
Superconductor technology: apparatus, material, process
High temperature , per se
Having tc greater than or equal to 150 k
423604, 505725, 505742, 505780, C01F 1102, C01F 1700, C01G 302
Patent
active
052329046
ABSTRACT:
This invention is directed to a method for making multiphase copper oxide based materials which have a phase having a zero resistance transition temperature above about 200K. The method comprises subjecting a copper oxide based material precursor to an oxygenation in an atmosphere comprising more than about 20% oxygen by volume at a temperature less than about 200.degree. C. for a time sufficient to form the material. The invention also is directed to maintaining the properties of a copper oxide based material having a zero resistance transition temperature above 150K.
REFERENCES:
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Chen Juei-Teng
Logothetis Eleftherios M.
Wenger Lowell E.
Boyd John
Ford Motor Company
Lieberman Paul
May Roger L.
Melotik Lorraine S.
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