PURPOSE: To make the contrast of color development distinct, and to manufacture a valuable decorative member by over-sintering the ceramic green molded form of a plurality of layers including a layer containing a color pigment, executing a cutting work to a part of the containing layer and exposing the containing layer.
CONSTITUTION: The ceramic green molded form of a plurality of layers of layers containing a color pigment and layers containing no pigment is formed. The green molded form is over-sintered, and breaking resistance strength is lowered. A part of the pigment-contained layer is cutting-worked, and the layer containing no pigment is exposed to the layer side containing the pigment. Accordingly, the contrast of the color development of the layer containing the color pigment and the layer containing no color pigment is displayed distinctly, thus improving the value as a decoration. Cutting work is enabled easily by the lowering of breaking resistance strength by over-sintering.
Nishihara, Takanori
Terada, Mitsuhiro
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