COMPOSITE POWDER HAVING MATRIX DOMAIN STRUCTURE AND NANOSIZE, WHICH HAS NO ADDITIONAL PULVERIZATION STEP

COMPOSITE POWDER HAVING MATRIX DOMAIN STRUCTURE AND NANOSIZE, WHICH HAS NO ADDITIONAL PULVERIZATION STEP

PURPOSE: Provided is nanosized composite powder, which has a matrix domain structure and balanced characteristics and is obtained with no need of an additional pulverization step. CONSTITUTION: The composite powder having a matrix domain structure comprises a matrix formed of a metal oxide, and is p...

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Bibliographische Detailangaben
Hauptverfasser: ZIMMERMANN GUIDO, KRAMER MICHAEL, PRIDOHL MARKUS, WOMBACHER WILLIBALD, GOTTFRIED HEIKO, KATUSIC STIPAN
Format: Patent
Sprache:eng ; kor
Schlagworte:
CHEMISTRY
COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSESC01D OR C01F
COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM,CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THERARE-EARTH METALS
COMPOUNDS THEREOF
INORGANIC CHEMISTRY
METALLURGY
NON-METALLIC ELEMENTS
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Beschreibung
Zusammenfassung:PURPOSE: Provided is nanosized composite powder, which has a matrix domain structure and balanced characteristics and is obtained with no need of an additional pulverization step. CONSTITUTION: The composite powder having a matrix domain structure comprises a matrix formed of a metal oxide, and is present in the form of three-dimensional clusters having a diameter of 250 nm or less in at least one-dimension. In the structure, each domain is formed of the metal oxide of the metal oxide matrix and/or noble metals. The domain comprises at least two metal oxides, at least two noble metals and a mixture of at least one metal oxide with at least one noble metal. The composite powder contains nanosized particles and has a surface area per unit volume of 60-1200 m2/cm3.