Abstract
Stability of a single bubble made of soap-water solution, BaO-B2O3 melts and molten CaO-SiO2-Al2O3-MgO slags were studied under air. For very stable BaO-B2O3 bubble, it is found that tension of bubble lamella is higher than surface tension of the melt. Similar situation was also observed for soap-water solution. For molten slags, whose bubble is unstable, tension of the lamella is lower than surface tension of the melt, but P2O5 addition to the melt increased the tension of the bubble lamella and the bubble was slightly stabilized. Stabilization mechanism of the bubble lamella is discussed.
