COPPER PARTICLE

PROBLEM TO BE SOLVED: To provide copper particles with high oxidation resistance, having electrical conductivity approximate to that of a copper elemental substance, and containing at least one of nickel and cobalt.SOLUTION: The copper particle has a central area, a surface area and a transition are...

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Bibliographische Detailangaben
Hauptverfasser:	KODAIRA TOSHIHIRO, NAKAMURA YOSHINOBU, MINOWA HIKARI
Format:	Patent
Sprache:	eng
Schlagworte:	ALLOYS BASIC ELECTRIC ELEMENTS CABLES CASTING CHEMISTRY CONDUCTORS ELECTRICITY FERROUS OR NON-FERROUS ALLOYS INSULATORS MAKING METALLIC POWDER MANUFACTURE OF ARTICLES FROM METALLIC POWDER METALLURGY PERFORMING OPERATIONS POWDER METALLURGY SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING ORDIELECTRIC PROPERTIES TRANSPORTING TREATMENT OF ALLOYS OR NON-FERROUS METALS WORKING METALLIC POWDER
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide copper particles with high oxidation resistance, having electrical conductivity approximate to that of a copper elemental substance, and containing at least one of nickel and cobalt.SOLUTION: The copper particle has a central area, a surface area and a transition area positioning between the central and surface areas. The main componential element of the central area is copper. In the transition area, the percentage of nickel or cobalt increases gradually toward the surface of the particle and simultaneously, that of copper gradually decreases. The surface area includes copper and at least either nickel or cobalt.