Study on Viscosity in Silicate Melts

The prediction of viscosity in silicate melts remains one of the most challenging and elusive goals in Earth Sciences. In this paper, the FD model estimating viscosity of the high temperature silicate melts has been established on the basis of measuring fractal dimension values of the molecular network in the melts. This model illuminates the following points , 1. The melt′s viscosity is in direct proportion to temperature of the silicate melts. 2. The melt′s viscosity is in direct proportion to Ni (Bridge Oxygen Number of molecular network in melts for nanometer). 3. The melt′s viscosity is in inverse proportion to no-Bridge Oxygen Number in one Tetrahedron. The viscosity′ s measurement values of the three types silicate melts have been consistent with the calculated viscosity′s values by FD model. So that this FD model has great significance for deliberating magma transference and evolution rule and enhancing performance of low dimensional silicate materials.