Fabrication of aluminum foam reinforced by graphene nanoflakes

This paper presents a novel approach for fabricating aluminum foam reinforced by graphene nanoflakes (GNFs) through the direct melt foaming method. With regard to this approach, GNFs coupled with the foaming agent were embedded on the surface of assistant agent via a cryomilling process. Experimental results showed most of GNFs were detected on the pore surface, only slight of GNFs were observed inside pore wall mixing with composite oxides. Besides, slight content of GNFs can significantly improve the pore structures.