ASSESSMENT OF USABILITY OF MOLTEN SALT MIXTURES IN METALLURGY OF ALUMINUM ALLOYS AND RECYCLING OF COMPOSITE MATERIALS BASED ON THE MATRIX OF Al ALLOYS

摘要

Effectiveness of the slags used in metallurgy of aluminum alloys and in recycling of composite materials containing these alloys depends on their surface properties at the phase boundaries they are in contact with. An index of surface properties of molten mixtures of slag-forming salts has been formulated. Its calculated values are compared with measured results of surface tension (liquid - atmosphere) and interfacial tension (liquid - liquid) in the considered systems. It was found that the index can be helpful for purposes of proper choice of the mixtures of slag-forming salts used both in Al alloys metallurgy and in recycling of composite materials based on the matrix of Al alloys.