The bursting of gas bubbles on the free surface of liquid iron produces iron droplets that are ejected into the surrounding atmosphere. The bubble bursting phenomenon was detected in situ by applying X-ray transmission techniques and by collecting and measuring the metal droplets formed. The effect of equivalent bubble diameter on the mass of ejections was studied. A critical bubble diameter was found which produces the maximum quantity of droplets. The critical diameter was about 9 mm for argon/liquid iron system with a surface tension of around 1.4N/m. The effect of an equivalent bubble diameter on the size and the number of jet droplets formed was also investigated.
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