A pr 2 00 8 The Dynamics of Silica Melts under High Pressure : Mode-Coupling Theory Results

@inproceedings{Voigtmann2008AP2,
  title={A pr 2 00 8 The Dynamics of Silica Melts under High Pressure : Mode-Coupling Theory Results},
  author={Th Voigtmann and J{\"u}rgen Horbach},
  year={2008}
}
The high-pressure dynamics of a computer-modeled silica melt is studied in the framework of the mode-coupling theory of the glass transition (MCT) using static-structure input from molecular-dynamics (MD) computer simulation. The theory reproduces the experimentally known viscosity minimum (diffusivity maximum) as a function of density or pressure and explains it in terms of a corresponding minimum in its critical temperature. This minimum arises from a gradual change in the equilibrium static… CONTINUE READING