Thermochemical Optimization of Float Glass Composition: Low-Alumina Glass Development

摘要

The liquidus temperature was measured for a float-glass-type composition region with 72.7 to 74.0 mass% SiO(sub 2), 0.1 to 0.45 mass% Al(sub 2)O(sub 3), 8.0 to 9.0 mass% CaO, 3.0 to 4.0 mass% MgO, and 13.1 to 14.2 mass% Na2O. Crystalline phases were identified at 900 deg C as cristobalite, wollastonite, and devitrite. The primary phases were tridymite and wollastonite. Partial specific liquidus temperatures were obtained from the data and compared with the literature.