COPPER CERAMIC COMPOSITE

The invention relates to a copper/ceramic composite comprising-a ceramic substrate which contains aluminum oxide, -a coating which lies on the ceramic substrate and which is made of copper or a copper alloy, wherein the copper or the copper alloy has a particle size number distribution with a median...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	Rogg, Alexander, Herbst, Kai, Muschelknautz, Christian
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ARTIFICIAL STONE BASIC ELECTRIC ELEMENTS CEMENTS CERAMICS CHEMISTRY COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS CONCRETE ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR ELECTRICITY LIME, MAGNESIA METALLURGY REFRACTORIES SEMICONDUCTOR DEVICES SLAG TREATMENT OF NATURAL STONE
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Beschreibung
Zusammenfassung:	The invention relates to a copper/ceramic composite comprising-a ceramic substrate which contains aluminum oxide, -a coating which lies on the ceramic substrate and which is made of copper or a copper alloy, wherein the copper or the copper alloy has a particle size number distribution with a median value d50, an arithmetic mean value darith, and a symmetry value S(Cu)=d50/darith; the aluminum oxide has a particle size number distribution with a median value d50, an arithmetic mean value darith, and a symmetry value S(Al2O3)=d50/darith; and S(Al2O3) and S(Cu) satisfy the following condition: 0.7