Study on the structure, fining and properties of non-alkali aluminoborosilicate glasses containing SnO2

Abstract

The effects of SnO2 content on the structure, fining, physical and chemical properties of the glasses were systematically discussed. The analytical results of Fourier transform infrared (FT-IR) spectra and X-ray photoelectron spectroscopy (XPS) show that the structure of non-alkali aluminoborosilicate glasses became loose firstly and then compact with the increase of SnO2 content. The appropriate addition of SnO2 can reduce the number of bubbles and has a positive impact on the glass properties. Simultaneously, the relationship between the glass structure or fining effect and the density, molar volume, Vickers hardness, compressive strength, bending strength, glass transmittance, and chemical stability was discussed. With the increasing of SnO2, the density shows an increasing trend, while the molar volume, compressive strength, bending strength, and transmittance increase first and then decrease decline for the studied glasses. In addition, the Vickers hardness and chemical stability decrease first and then increase.