Controlled heating and cooling of mixed conducting metal oxide materials

Method for processing an article comprising a mixed conducting metal oxide material, which method comprises (a) contacting the article with an oxygen-containing gas and reducing or increasing the temperature of the oxygen-containing gas; (b) when the temperature of the oxygen-containing gas is reduc...

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Bibliographische Detailangaben
Hauptverfasser:	MINFORD, ERIC, TAYLOR, DALE M, MOTIKA, STEPHEN ANDREW, CAROLAN, MICHAEL FRANCIS, WATSON, MATTHEW JAMES
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ARTIFICIAL STONE BASIC ELECTRIC ELEMENTS CABLES CEMENTS CERAMICS CHEMISTRY COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS CONCRETE CONDUCTORS ELECTRICITY INSULATORS LIME, MAGNESIA METALLURGY PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL REFRACTORIES SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING ORDIELECTRIC PROPERTIES SEPARATION SLAG TRANSPORTING TREATMENT OF NATURAL STONE
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Beschreibung
Zusammenfassung:	Method for processing an article comprising a mixed conducting metal oxide material, which method comprises (a) contacting the article with an oxygen-containing gas and reducing or increasing the temperature of the oxygen-containing gas; (b) when the temperature of the oxygen-containing gas is reduced, reducing the oxygen activity in the oxygen-containing gas; and (c) when the temperature of the oxygen-containing gas is increased, increasing the oxygen activity in the oxygen-containing gas.