Patent ID: 6713421
Filing Date: 2004-03-30
Classification: A61K,C04B

Abstract:
A blank comprising zirconium oxide-based ceramic, containing:(A) at least 91 wt.-% zirconium oxide, (B) 0 to 3.5 wt.-% hafnium oxide, (C) 1.5 to 6.0 wt.-% yttrium oxide, (D) 0.15 to 0.50 wt.-% of at least one of the oxides of the elements aluminum, gallium, germanium, and indium, (E) 0.2 to 1.5 wt.-% coloring additives, selected from the group consisting of the oxides Fe2O3, Er2O3 and MnO2, wherein the wt.-% must add up to 100.