| abstract |
A fine-grained ceramic molded body composed of (0.5) to (4) mol% of rare earth oxide and (0.5) to (7) mol% of MgO-containing ZrO2 has cubic grains which are coated with Mg-Al spinel particles. For its production, a ZrO2 powder alloyed with rare earth oxide, in particular with Y2O3, which contains small amounts of A12O3, is pressed and sintered in the presence of MgO at temperatures between 1400 and 1600 ° C and then optionally tempered at temperatures between 1200 and 1350 ° C . |