The compositional dependence of the viscosity was studied for two high aluminosilicate melt series: Na2O-CaO-Al203-Si02(NCAS) and K2O-Na2O-CaO-Al2O3-SiO2 (KNCAS). The viscosity and the glass transition temperature were measured by concentric cylinder viscometry and differential scanning calorimetry, respectively. This work discusses the viscosity predictive model set up by Bottinga and Weill.
Origin
University Aalborg, Denmark
Journal Title
Glass Sci Technol 76 6 2003 270-275
Sector
Special Glass
Class
S 2720