Table 5 Corrected compositions, number of BS and BB per atom, and total number of constraints per atom (nc) of the Na-depleted layers forming on the surface of the NSAC19, NSAC21, and NSAC35 glasses. As a network modifier, Li is here assumed to follow the same behavior as Na.
Name | Corrected composition | BS | BB | nc | ||||
|---|---|---|---|---|---|---|---|---|
SiO2 | Na2O | Al2O3 | CaO | Li2O | ||||
NSAC19m | 62.1 | 11.1 | 11.1 | 15.6 | 0.0 | 1.28 | 1.88 | 3.15 |
NSAC21m | 67.8 | 7.0 | 7.0 | 18.2 | 1.28 | 1.87 | 3.15 | |
NSAC35m | 80.8 | 9.6 | 9.6 | 1.31 | 2.19 | 3.51 | ||
