Abstract
The contact angle between molten metal and slag was measured by the shape of the molten slag on the molten metal surface, and the interfacial properties—contact angle, interfacial tension, work of adhesion and spreading coefficient—between molten pure metals (silver, copper and nickel) or alloys (nickel-copper and copper-siliver) and molten aluminate slag (CaO-MgO-Al2O3) were investigated.
In the pure metal-slag system these interfacial properties regularly changed in the order of silver, copper and nickel. It is considered that the variation of the interfacial properties from metal to metal may be related to the polarizing power of the metal.
In the alloy-slag systems the interfacial properties changed smoothly with the composition of the alloy.
