| abstract |
The present invention is a method for producing a multilayer blank having a bottom layer and a top layer of a ceramic material, in which layers having different compositions are introduced into a mold layer by layer, compressed, and then sintered, and individual layers are formed. It contains at least one colored oxide, and as the first colored oxide, at least one oxide from the Co, Mn, Ni, Cr group is used as one colored oxide, and the first colored oxide is used. The proportion of the first colored oxide in the bottom layer containing the first colored oxide is lower than that in the top layer containing the first colored oxide, and at least one of the Pr, Er, Fe, Ti, V, Bi, Cu, and Tb groups. The oxide is used as the second colored oxide, and the proportion of the second colored oxide in the bottom layer containing the second colored oxide is higher than the proportion in the top layer. |