H.W. Nesbitt

Role of Na in determining the properties of sodic glasses

Molecular Dynamics (MD) simulation of Na 4 SiO 4 glass yields Na-O bond distances, and O-Na-O angles remarkably similar to those in sodic crystals, regardless of their compositions. Na polyhedra in both phases are stabilized by a common, formative mechanism, collapse of SiO 4 tet...