Life time of structural units and viscosity of borate melt by computer simulation

Molecular dynamics simulation was carried out for B2O3-Na2O melt by using t he modeled pair potential. The total pair distribution function derived mra s in good agreement with the experimental result. The structural units such as four- or three-coordinated B atoms and their life times were analyzed t o characterize the network structure of melt. It was found the life time of four-coordinated B atom was very short. We also simulated the viscosity of the melt and discussed the relation of the viscosity and network structure .