Transparent ceramic as a component for fracture-resistant optical units
AssigneeFraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.
InventorsLars Schnetter, Tino Schreiner, Jürgen Waidhas
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Abstract
The present invention relates to parts of transparent corundum ceramics and the production and use of said parts.
Claims19
A part of transparent corundum ceramic, wherein the ceramic is singly or multiply doped with at least one dopant comprising magnesium oxide, yttrium oxide, and/or lanthanum oxide, wherein a total amount of doping agent is ≤2000 ppm, the part has a thickness of <800 μm, the part is a consolidated part having a porosity <0.01%, average grain sizes D50 of the corundum ceramic in the consolidated part are <500 nm, and the part is in the shape of a wafer.
Dependencies are inferred from the claim text.