Studies on bubble films of molten slags

摘要

Bubble films of CaO-SiO2-Al2O3 slags were withdrawn on wire frames, and their draining rates measured at temperatures up to 1723 K using a developed gravimetric technique. The influence of additions of Na2O and P2O5, as surfactants, on the draining rate and stability of slag films is investigated. Characteristic draining behaviour (interfacial flow) and the thickness of the films were investigated using a laser interferometry and laser absorption/transmission method. Evidence of localized thinning regions within the slag films, and measurements of the actual thickness of the films before rupture will be presented. [References: 19]