Chemical composition of structures obtained inside quartz crystals by sodium electrodiffusion

Dendritic structures were grown inside quartz crystals by electrodiffusion of sodium ions from a NaCl layer at the anode. An experimental arrangement using a point cathode and a graphite plate anode was employed. X-ray diffra ction experiments were carried out, the structures chemical composition was found to be a mixture of sodium silicates. The chemical composition evolut ion in time was observed. There were made VIS and UV optical absorption spe ctroscopy measurements of these structures, a colloidal band being found. T hermoluminescence glow curves were measured. Based on the experimental resu lts and observations a growth model is proposed.