TY - JOUR

T1 - An overview on the effect of dissolved water on the viscosity of soda lime silicate melts

AU - Deubener, J.

AU - Behrens, H.

AU - Müller, R.

N1 - Funding Information: We gratefully acknowledge support of the Deutsche Forschungsgemeinschaft (DFG) by grants Be 1720/9 , De 598/4 , Mu 963/4 in 2001–2006 and by the priority program SPP 1594 in 2012–2020. In particular, we thank the former PhD students R. Balzer, P. del Gaudio, P. Kiefer, A. Stuke, T. Waurischk and S. Zietka for their work on hydrous soda lime silicate glasses and melts.

PY - 2023/9

Y1 - 2023/9

N2 - In this review article, the impact of dissolved water on the viscous properties of soda lime silicate melts is addressed against the background of the upcoming switch from natural gas to hydrogen combustion. This change will lead to an increase in the total water content of the glasses by up to 0.4 mol%. In order to better define possible influences of water speciation, water-rich glasses were synthesised under increasing pressure up to the kbar range. It is shown that a distinction must be made between the influence of dissolved OH-groups and H2O-molecules in order to accurately reflect the dependence of isokom temperatures on water content. In addition, an increase of one order of magnitude in the tolerance to higher deformation rates was observed for the range of expected increased water contents during isothermal deformation processes, which is based on the time-temperature superposition principle, i.e. congruent flow curves were determined under isokomal conditions.

AB - In this review article, the impact of dissolved water on the viscous properties of soda lime silicate melts is addressed against the background of the upcoming switch from natural gas to hydrogen combustion. This change will lead to an increase in the total water content of the glasses by up to 0.4 mol%. In order to better define possible influences of water speciation, water-rich glasses were synthesised under increasing pressure up to the kbar range. It is shown that a distinction must be made between the influence of dissolved OH-groups and H2O-molecules in order to accurately reflect the dependence of isokom temperatures on water content. In addition, an increase of one order of magnitude in the tolerance to higher deformation rates was observed for the range of expected increased water contents during isothermal deformation processes, which is based on the time-temperature superposition principle, i.e. congruent flow curves were determined under isokomal conditions.

KW - Hydrogen melting

KW - Shear thinning

KW - Soda lime silicate glasses

KW - Viscosity

KW - Water in glass

UR - http://www.scopus.com/inward/record.url?scp=85162852701&partnerID=8YFLogxK

U2 - 10.1016/j.nocx.2023.100195

DO - 10.1016/j.nocx.2023.100195

M3 - Article

AN - SCOPUS:85162852701

VL - 19

JO - Journal of Non-Crystalline Solids: X

JF - Journal of Non-Crystalline Solids: X

M1 - 100195

ER -