Structure and properties of modified compocast microsilica reinforced aluminum matrix composite

Figure shows (a) SEM photomicrographs of surface treated micro silica particles, (b) A356-7% micro silica (treated) composite synthesized by liquid metal stir casting and gravity cast, (c) A356-7% micro silica (treated) composite processed by compocasting followed by squeeze casting, and (d) recasted final composite by remelting, stirring and squeeze casting.300