“…Generally, fabrication methods for the Al composite foams reinforced by "ex-situ" ceramic phases such as Al 2 O 3 [7], SiC particles [8][9][10] and Al 2 O 3 short fibers [11,12] can be classified as direct melt foaming, powder metallurgy and space holder technology. The melt foaming route [8][9][10][11][12] is relatively suitable for industrial mass production on account of its good formability and low cost.…”