Effect of Al2O3 on Surface Tension of the SiO2-Al2O3-RO-R2O Glass System

Abstract

This study selected high alkali aluminosilicate glass as the research object. It’s belongs to the SiO2-Al2O3-RO-R2O glass system. By changing the content of Al2O3in the SiO2-Al2O3-RO-R2O glass system, designed five basic glass formula. Using conventional melting method prepared the high alkali aluminosilicate glass. In the case of the same heat treatment, the glass formulations are the most important factor in the glass surface tension. Using the glass surface tension measuring instrument, focus on the content of Al2O3on the glass surface tension’s effects law. The results show that the high alkali aluminosilicate glass’s surface tension are increase with the increase of Al2O3content. The relation between glass surface tension and the content of Al2O3conforms to the formula Y=290+6.5WAl2O3, Al2O3factors influence the surface tension of the glass is 6.5.