ABSTRACT
Using the novel technique of electron backscattered diffraction (EBSD) in the scanning electron microscope, this article presents a comprehensive study on reaction kinetics during molten aluminum refining, applied to the removal of antimony using calcium additions and magnesium removal using silica additions. The determination of reaction products using the EBSD technique permitted to define stoichiometry of reactions taking place, as well as the clarification of the reaction mechanisms occurring during refining. Therefore, the kinetic parameters of interest such as rate constant values and activation energy of each process are obtained.
