Poster (EARTH)

[PE1-073] Study on Molten Salt Electrolysis for Production of Al-Sc Alloys

○Go-Gi Lee¹, Seong-Kyu Jang¹, Sung-Koo Jo¹, Jae-Young Lee¹ (1. Research Institute of Industrial Science and Technology)

Keywords:Scandium oxide , Al-Sc alloy, Molten Salt, Electrolysis

Scandium (Sc), one of the rare earth elements, is the lightest transition metal and has a high melting temperature. Sc is mainly obtained as a by-product during processing of various ores, residues, tailings and waster liquors in the production of other metals such as rare earths, uranium, titanium, tungsten, aluminium, nickel, tantalum and niobium.Sc is reported is to be one of the most effective additive for superior properties including light weight, high strength, good thermal resistance and long durability to aluminium (Al) alloys.Electrolysis for producing of Al-Sc alloys has been proposed. In this study, Al-Sc alloy was prepared by the electrolysis process through the dissolution of Sc₂O₃ in combination of fluoride molten salts without chloride salts.