Possibility of Preparing Alloys of the Al–Si System Using Amorphous Microsilica

Abstract

Contemporary methods for silumin preparation are reviewed. Prospects of preparing silumin using amorphous silica are connected, first, with a high yield of silicon production waste; second, with a return for their industrial use; and, third, with deterioration of the ecological situation adjacent to slurry field of the territory. A thermodynamic possibility is established for reducing silicon dioxide in molten aluminum. Different methods are studied for adding SiO₂ particles into molten aluminum. It is determined that the most effective method is exhibited by adding particle to melt in a semisolid state.