Table 1 Identified vibrational peaks in the studied glasses and their assignments40,41,42,43,44,45,46,47,48.
Band position wavenumber (cm− 1) | Assignments |
|---|---|
450–564 | Bending vibrations of silicate Al – O Ti - O |
628–698 | Si – O – Al Ti – O (TiO4/TiO6) |
703–789 | Si – O – Si |
892 | NBO (Si – O – Li) |
975–990 | Si – O− |
1076–1177 | Asymmetric stretching vibrations Si – O – Si |
1292 | Stretching vibrations Si – O Ti – O |
1378–1469 | Li – O bending vibrations |
