Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
METAL-CERAMIC SUBSTRATE AND METHOD FOR PRODUCING A METAL-CERAMIC SUBSTRATE
The invention relates to a metal-ceramic substrate and to a method for the production thereof, the substrate including at least one ceramic layer having first and second surface sides, at least one of the surface sides of which is provided with a metallisation, wherein the ceramic material forming the ceramic layer contains aluminium oxide, zirconium dioxide and yttrium oxide. The ceramic layer contains aluminium oxide, zirconium dioxide and yttrium oxide in the following proportions, in each case in relation to the total weight thereof: zirconium dioxide between 2 and 15 percent by weight; yttrium oxide between 0.01 and 1 percent by weight; and aluminium oxide between 84 and 97 percent by weight, wherein the average grain size of the aluminium oxide used is between 2 and 8 micrometres and the ratio of the length of the grain boundaries of the aluminium oxide grains to the total length of all the grain boundaries is greater than 0.6
METAL-CERAMIC SUBSTRATE AND METHOD FOR PRODUCING A METAL-CERAMIC SUBSTRATE
The invention relates to a metal-ceramic substrate and to a method for the production thereof, the substrate including at least one ceramic layer having first and second surface sides, at least one of the surface sides of which is provided with a metallisation, wherein the ceramic material forming the ceramic layer contains aluminium oxide, zirconium dioxide and yttrium oxide. The ceramic layer contains aluminium oxide, zirconium dioxide and yttrium oxide in the following proportions, in each case in relation to the total weight thereof: zirconium dioxide between 2 and 15 percent by weight; yttrium oxide between 0.01 and 1 percent by weight; and aluminium oxide between 84 and 97 percent by weight, wherein the average grain size of the aluminium oxide used is between 2 and 8 micrometres and the ratio of the length of the grain boundaries of the aluminium oxide grains to the total length of all the grain boundaries is greater than 0.6
METAL-CERAMIC SUBSTRATE AND METHOD FOR PRODUCING A METAL-CERAMIC SUBSTRATE
SCHMIDT KARSTEN (Autor:in) / MEYER ANDREAS (Autor:in) / LEGATH ALEXANDER (Autor:in) / SCHMIRLER MARTINA (Autor:in)
13.08.2015
Patent
Elektronische Ressource
Englisch
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