OXIDE SUPERCONDUCTOR AND ITS PRODUCTION METHOD

OXIDE SUPERCONDUCTOR AND ITS PRODUCTION METHOD

PROBLEM TO BE SOLVED: To provide a large-sized oxide superconductor excellent in electric characteristics, magnetic properties, mechanical strengths and environmental resistance, and a method for producing such an oxide superconductor with good reproducibility and yield. SOLUTION: In the method for...

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Bibliographische Detailangaben
Hauptverfasser: NAGAYA SHIGEO, KOBAYASHI SHUICHI, HASEYAMA HIDEETSU
Format: Patent
Sprache:eng
Schlagworte:
BASIC ELECTRIC ELEMENTS
CABLES
CHEMISTRY
COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSESC01D OR C01F
CONDUCTORS
ELECTRICITY
INORGANIC CHEMISTRY
INSULATORS
METALLURGY
SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING ORDIELECTRIC PROPERTIES
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Zusammenfassung:PROBLEM TO BE SOLVED: To provide a large-sized oxide superconductor excellent in electric characteristics, magnetic properties, mechanical strengths and environmental resistance, and a method for producing such an oxide superconductor with good reproducibility and yield. SOLUTION: In the method for producing the oxide superconductor, Ag is added to the mixed raw materials which contain a RE compound, Ba compound and Cu compound, and the raw materials are melted, solidified and crystal-grown, Ag of 5-60% is added to the mixed raw materials with molar ratio of elements RE, Ba and Cu in the mixed raw materials, which is adjusted to the range of surrounded with A (0.17, 0.35, 0.48), B (0.22, 0.34, 0.44), C (0.23, 0.3, 0.47) and D (0.17, 0.32, 0.51).