The chemical stability and electrochemical behavior of Dy2O3 in molten CaCl2

The chemical stability of Dy2O3 in molten CaCl2 was studied by confocal scanning laser microscopy. Results illustrate that Dy2O3 is relatively stable in molten CaCl2, and it is a good candidate for the extraction of dysprosium or dysprosium alloys through direct electrochemical reduction. The electrochemical behavior of dysprosium oxide in contact with either a solid molybdenum or a liquid tin cathode has been investigated by cyclic voltammetry in a CaCl2 melt at 1173 K (900 °C).status: publishe