| 摘要 |
PURPOSE: Lithium oxide-alumina-silica crystallization glass is provided to improve solubility, formability, homogeneity, transparency and heat resistance owing to the thermal expansion coefficient of nearly 0, thereby being suitably used as kitchen utensil, panel used in a heater, reflector of an astronomical telescope and the like. CONSTITUTION: The lithium oxide-alumina-silica crystallization glass comprises: 65-70wt% of SiO2; 18-23wt% of Al2O3; 3.6-5.5wt% of Li2O; 0.1-1.2wt% of Na2O; 0.1-1.2wt% of K2O; 0-1wt% of MgO; 0-1wt% of CaO; 0-1wt% of SrO; 0-1wt% of BaO; 0.1-1.2wt% of ZnO; 1-4wt% of ZrO2; 0.5-1.7wt% of TiO2; 0.1-1wt% of CeO2; 0-1wt% of As2O3; and 0-1wt% of Sb2O3, and has a major crystalline phase of beta-quartz solid or beta-spodumene.
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