RE-BA-CU-O-BASED OXIDE SUPERCONDUCTOR AND ITS PRODUCTION

RE-BA-CU-O-BASED OXIDE SUPERCONDUCTOR AND ITS PRODUCTION

PROBLEM TO BE SOLVED: To satisfy the requirements such as electric characteristics, magnetic characteristics, mechanical characteristics and environmental resistance for a superconductor and to obtain a higher critical current density by allowing a twin crystal having a specified plane distance to b...

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Bibliographische Detailangaben
Hauptverfasser: KOBAYASHI SHIYUUICHI, NAGAYA SHIGEO, HASEYAMA HIDEETSU, SATO MAMORU
Format: Patent
Sprache:eng
Schlagworte:
ARTIFICIAL STONE
BASIC ELECTRIC ELEMENTS
CABLES
CEMENTS
CERAMICS
CHEMISTRY
COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS
COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSESC01D OR C01F
CONCRETE
CONDUCTORS
ELECTRICITY
INORGANIC CHEMISTRY
INSULATORS
LIME, MAGNESIA
METALLURGY
REFRACTORIES
SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING ORDIELECTRIC PROPERTIES
SLAG
TREATMENT OF NATURAL STONE
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Zusammenfassung:PROBLEM TO BE SOLVED: To satisfy the requirements such as electric characteristics, magnetic characteristics, mechanical characteristics and environmental resistance for a superconductor and to obtain a higher critical current density by allowing a twin crystal having a specified plane distance to be present in a specified crystal phase which constitutes the superconducting phase. SOLUTION: The RE-Ba-Cu-O-based oxide superconductor has fine dispersion of RE2(1-q) Ba1+r CUO5+s phase (211 phase) and/or RE4(1-q) Ba2(1+r) CU2 O2(5+s) phase (422 phase) 10 RE1-x Ba2+y CU3 Od phase (123 phase) which constitutes the superconducting phase. In this superconductor, a twin crystal is present in the (123 phase) crystal phase and the distance between the twin crystal planes is