44213 2017 eng lecture 0 -- -- -- Hydrous silicate and borate glasses of up to 8 wt% water were prepared using wet condition of melting under external pressure. Rheological experiments were conducted to determine the effect of the total water content on viscous flow and kinetic fragility. The findings indicate that dissolved water acts as a strong fluxing agent in both glass types. Water decreases particularly viscosity at the glass transition range, makes the viscosity-temperature curve "longer" and thus decreases kinetic fragility. Recent IR and NMR data are presented to link the dynamics of hydrous silicate and borate glasses with their structure particularly with regard to changes in the water-, silicon- and boron-speciation. FFAG 7: 7th International Workshop on Flow and Fracture of Advanced Glasses Aalborg, Denmark 02.07.2017 05.07.2017 0 J. Deubener eng uncontrolled Hydrous glass eng uncontrolled Rheology eng uncontrolled Silicate glass eng uncontrolled Borate glass Ingenieurwissenschaften und zugeordnete Tätigkeiten Datei im Netzwerk der BAM verfügbar ("Closed Access") Präsentation