Isothermal And Isochomal Workability Of Glass Melts - Influence Of Melting History: Minor Composition Changes Of Redox State And Hydroxyl Content - A Study Of The Sensitivity Of The Cylinder Compression Method

The influence of redox state and hydroxyl concentrations on the pure non-Newtonian flow behaviour, on the gross non-Newtonian viscosity, on the stress generation modulus, brittleness, high-temperature tensile strength and on the critical deformation rate of an iron oxide-containing laboratory glass melt with two different melting histories, but with the same main chemical composition, is investigated by means of the cylinder compression method.