Glass forming fluids

The differential fragility Xg of a glass-forming fluid at a temperature T may be defined through the derivative of the normalized activation energy for structural relaxation,... 

The study of fluid viscosity has occupied scientists for many years. Intellectual interest has been sparked by attempts to link the underlying molecular dynamics to the viscosity, especially the multiple-decade-viscosity change found in simple glass-forming fluids. The many practical consequences which arise from fluid-flow characteristics (from low-viscosity liquids to high-viscosity glasses) have provided ample incentive for applied studies. Variable-pressure data are valuable to both theoretical and practical investigations. 

Binder, K., Horbach, J., Knoth, H., and Pfleiderer, P. (2007) Computer simulation of molten silica and related glass forming fluids recent progress. J. Phys. Condens. Matter, 19, 205102. 

The AG model [48] for the dynamics of glass-forming liquids essentially postulates that the drop in S upon lowering temperature is accompanied by collective motion and that the fluid s structural relaxation times r are activated with a barrier height that is proportional [80] to the number z of polymer... 

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