Dimensionally stable Ceramic Vessel Composition and Preparing Methods Thereof

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PURPOSE : A ceramic container composition having dimensional stability, and a manufacturing method of ceramic containers using the same are provided to constantly maintain dimensional change even under high temperature sintering.CONSTITUTION : A ceramic container composition having dimensional stability comprises : 50-80 parts by weight of clay, kaolinite, enterolith, silica, pottery stone, quartz, or a mixture thereof; 10-30 parts by weight of alumina, bentonite, ferric oxide, titanium dioxide, silicon oxide, or a mixture thereof; 7-15 parts by weight of gypsum, ash, fibers, or a mixture thereof; and 3-5 parts by weight of rare earth metal oxide. A ceramic vessel manufacturing method comprises the following steps : manufacturing a ceramic body using the ceramic container composition; molding the ceramic body into a ceramic container; and sintering the molded ceramic container at 700-1, 200 deg. Celsius.COPYRIGHT KIPO 2013