A pb-bi-sr-ca-cu-oxide powder mix with enhanced reactivity and process for its manufacture

An Oxide Precursor Powder from the Pb-Bi-Sr-Ca-Cu-O 2223 System can be produced by heat treating powder, produced using the Spray Pyrolysis Process as described in: GB2210605 or EP0681989 between 700° C. and 850° C. in an atmosphere containing between 0.1% and 21% O2. Heat Treatment of the pyrolysis...

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Bibliographische Detailangaben
Hauptverfasser:	LEE WOODALL, WOLFGANG WILHELM SCHMAHL, SEBASTIAN RAETH, RU-SHI LIU, YA-WEI HSUEH
Format:	Patent
Sprache:	eng
Schlagworte:	BASIC ELECTRIC ELEMENTS CABLES CHEMISTRY COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSESC01D OR C01F COMPOUNDS THEREOF CONDUCTORS ELECTRICITY INORGANIC CHEMISTRY INSULATORS METALLURGY NON-METALLIC ELEMENTS SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING ORDIELECTRIC PROPERTIES
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Beschreibung
Zusammenfassung:	An Oxide Precursor Powder from the Pb-Bi-Sr-Ca-Cu-O 2223 System can be produced by heat treating powder, produced using the Spray Pyrolysis Process as described in: GB2210605 or EP0681989 between 700° C. and 850° C. in an atmosphere containing between 0.1% and 21% O2. Heat Treatment of the pyrolysis powder under controlled conditions produces a powder with a particular phase composition, that is highly homogeneous and has a small particle size distribution, that is inherently more reactive than powders heat treated in the same way but produced using other processes.