Progress in rheology of glass melts - a survey

摘要: The rheology of glass melts is not restricted to Newtonian viscous flow, but it involves also non-Newtonian flow and viscoelasticity. former one predominates in the steady-state at low deformation rates, latter ones prevail during initial state stress generation final fracture under extreme conditions. whole range rheological phenomena demonstrated this article. Typical available experimental results mathematical formulations are briefly given for single-phase melts. In context development new equations gives rise introduction a series definitions conceptions which physically mathematically characterize different behaviour various stress-strain connection between structural aspects pointed out with short reference birefringence. Finally, an extension from double-phase system developed case suspended crystals defined sizes, concentrations shapes within inert melt (model glass-ceramic melts).