The Structure of Soda-Lime-Silicate Glass and Melt by X-ray Diffraction Method (SOLID STATE CHEMISTRY-Amorphous Materials)

Abstract

The structure of soda-lime-silicate(16Na2O・10CaO・74SiO2) glass and melt (~1500°C) was investigated by X-ray diffraction method in combination with molecular dynamics(MD) calculation. The short- and intermediate range structure of the glass was investigated as a function of temperature by using MD simulation. The experimental results clearly show that there is no distinct difference in structure between the present glass and melt. We also found from MD calculation that the linkage of Si-O network made of SiO4 tetrahedra shows similarities between glass and melt. It is also found that the first sharp diffraction peak(FSDP) associated with intermediate range structure is contributed from the correlation between Na+(or Ca2+) and SiO4 network.