Structure‐Property Correlation in BaO‐TiO 2 ‐B 2 O 3 Glasses: Glass Stability, Optical, Hydrophobic, and Dielectric Properties

Glasses in the x (BaO‐TiO 2 )‐B 2 O 3 ( x = 0.25, 0.5, 0.75, and 1 mol.) system were fabricated via the conventional melt‐quenching technique. Thermal stability and glass‐forming ability as determined by differential thermal analysis ( DTA ) were found to increase with increasing BaO–TiO 2 ( BT ) content. However, there was no noticeable change in the glass transition temperature ( T g ). This was attributed to the active participation of TiO 2 in the network formation especially at higher BT contents via the conversion of the TiO 6 structural units into TiO 4 units, which increased the connectivity and resulted in an increase in crystallization temperature. Dielectric and optical properties at room temperature were studied for all the glasses under investigation. Interestingly, these glasses were found to be hydrophobic. The results obtained were correlated with different structural units and their connectivity in the glasses.