Sodium diffusion through amorphous silica surfaces: A molecular dynamics study

Abstract

We have studied the diffusion inside the silica network of sodium atoms initially located outside the surfaces of an amorphous silica film. We have focused our attention on structural and dynamical quantities, and we have found that the local environment of the sodium atoms is close to the local environment of the sodium atoms inside bulk sodo-silicate glasses obtained by quench. This is in agreement with recent experimental results.

7 pages, 5 figures; accepted for publication in J. Chem. Phys

References in corpus (5)

• Static and Dynamic Properties of a Viscous Silica Melt Molecular Dynamics Computer Simulations
• Structure and Dynamics of amorphous Silica Surfaces
• Channel diffusion of sodium in a silicate glass
• Structural and electronic properties of the sodium tetrasilicate glass Na${}_2$Si${}_4$O${}_9$ from classical and ab initio molecular-dynamics simulations
• The Structure and Dynamics of Sodium Disilicate