Connectivity and Rigidity in Borosilicate Glasses
arXiv:2606.16719
Abstract
We present a structural analysis of glasses formed by mix of SiO2 and B2O3 glass formers with soda and lime modifiers (Na2O and CaO), which provide a good testing ground for Stochastic Agglomeration Theory. With local structural units properly identified, we can reproduce the one-parameter glass transition temperature T_g (z) curve for the family of (0.75-z) SiO_2 + 0.15 Na_2O + 0.10 CaO + z B_2O_3 glasses studied experimentally by Smedskjaer et al.
21 pages, 11 figures, 1 Table. Presented at the Glass Science and Technology Conference, Cambridge, Sept. 2025. Submitted to "Physics and Chemistry of Glasses", European Journal of Glass Science and Technology