ULTRAFINE COPPER POWDER AND ITS PRODUCTION

PURPOSE:To provide ultrafine copper powder which has excellent conductivity and is adequate as a conductive filler by incorporating metallic copper particles having a desired ultrafine grain size at a prescribed ratio or above into said powder. CONSTITUTION:A copper suboxide particle slurry and acid...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	KAWASUMI YOSHIO, KYONO IWAO
Format:	Patent
Sprache:	eng
Schlagworte:	ADHESIVES CASTING CHEMISTRY DYES MAKING METALLIC POWDER MANUFACTURE OF ARTICLES FROM METALLIC POWDER METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS PAINTS PERFORMING OPERATIONS POLISHES POWDER METALLURGY PREPARATION OF CARBON BLACK TRANSPORTING TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS,TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES WORKING METALLIC POWDER
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Beschreibung
Zusammenfassung:	PURPOSE:To provide ultrafine copper powder which has excellent conductivity and is adequate as a conductive filler by incorporating metallic copper particles having a desired ultrafine grain size at a prescribed ratio or above into said powder. CONSTITUTION:A copper suboxide particle slurry and acid (most preferably sulfuric acid) are mixed and while both are homogenized by stirring, etc., the temp. of the reactive liquid is maintained at