The maximum bubble pressure method was used to obtain accurate surface tension measurements. The dependence of apparent surface tension value on bubble growth time was measured for times from several to longer than a thousand seconds. The static surface tension value was obtained by extrapolating bubble growth time to infinity. The dynamic surface tension, which is familiar in colloids, could not be directly obtained because of the high viscosity of glass melt. The effects of capillary tip material and shape were also examined.
Origin
Osaka National Research Inst, Japan
Journal Title
Glastech Ber Glass Sci Technol 73 11 2000 337-343
Sector
Special Glass
Class
S 2085