Abstract
Glasses containing TiO2 in the range of 54-71 mol% were prepared in the systems of TiO2-P2O5-GeO2 and Na2O-TiO2-P2O5-GeO2. Some physical properties of these glasses were determined. The thermal expansion coefficients (α) were 2.6-3.5×10-6°C-1 in the range from 30-550°C. These values are smaller than those for any other value among known glasses which contain P2O5 as the main component. The values are comparable to those of low thermal expansion double phosphate ceramics recently reported.
