| 摘要 |
A heat resistant ceramic ware is provided to prevent the ceramic ware from being cracked in the portion of its glaze, to prevent the ceramic ware from being contaminated with a detergent during washing, and to enable production of ceramic ware with various colors and designs. A heat resistant ceramic ware is obtained by using: a base material essentially comprising petaltite having excellent heat and impact resistance and a small heat expansion coefficient and red mica, and further comprising clay(plastic clay and kaolin), MgO(talc and dolomite) and a small amount of ZnO, ZrO2 and TiO2; and a glaze causing no cracking, essentially comprising petalite and red mica, and further comprising BaO(or PbO), silicate and B2O3. The base material satisfies the Seger formula of: 0.20-0.45 mol of Li2O, 0.13-0.35 mol of MgO, 0.01-0.05 mol of Na2O, 0.01-0.12 mol of K2O, 0.01-0.06 mol of CaO, 0.01-0.02 mol of ZnO, 1 mol of Al2O3, 3.80-5.20 mol of SiO2, 0.01-0.10 mol of ZrO2, and 0.01-0.02 mol of TiO2. The glaze composition satisfies the Seger formula of: 0.65-0.91 mol of Li2O, 0.02-0.10 mol of BaO(or 0.01~0.10 mol of PbO), 0.01-0.05 mol of Na2O, 0.01-0.05 mol of K2O, 0.01-0.10 mol of CaO, 0.01-0.05 mol of ZnO, 0.35-1.40 mol of Al2O3, 0.01-0.10 mol of B2O3, 0.00-0.02 mol of Fe2O3, 2.95-7.50 mol of SiO2, and 0.01-0.04 mol of ZrO2.
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