TY  - CONF
A1  - Deubener, J.
T1  - Flow of hydrous borate and silicate glasses
N2  - 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.
T2  - FFAG 7: 7th International Workshop on Flow and Fracture of Advanced Glasses
CY  - Aalborg, Denmark
DA  - 02.07.2017
KW  - Hydrous glass
KW  - Rheology
KW  - Silicate glass
KW  - Borate glass
PY  - 2017
AN  - OPUS4-44213
LA  - eng
AD  - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany
ER  -