Glass Sample | Starting Oxide mixtures mol % | [O/P] Ratio | log (DR) (g∙cm−2∙min−1) (±0.2) | Tg (˚C) | Tc (˚C) | |||
P2O5 | CaO | Na2O | TiO2 | (±2) | ||||
48T05 | 48 | 30 | 21.5 | 0.5 | 3046 | −4.9 | 405 | 495 |
48T10 | 48 | 30 | 21 | 1 | 3052 | −5.1 | 449 | 498 |
48T15 | 48 | 30 | 20.5 | 1.5 | 3057 | −5.7 | 473 | 525 |
48T20 | 48 | 30 | 20 | 2 | 3062 | −6.05 | 476 | 540 |
48T25 | 48 | 30 | 19.5 | 2.5 | 3067 | −5.9 | 430 | 490 |
48T30 | 48 | 30 | 19 | 3 | 3072 | −5.5 | 450 | 496 |