عنوان مقاله [English]
نویسندگان [English]چکیده [English]
One of the methods to produce metal composite foam is casting around ceramic or metallic hollow spheres. The main problem in this method is the melt penetration between hollow spheres. In this research metal foam was produced by casting around ceramic hollow spheres. Ceramic hollow spheres were produced by sodium silicate binder and fire clay. Ceramic hollow spheres were molded in random and ordered arrangements. Ceramic hollow spheres were arranged in two various arrangement by thin wire steel meshes. In various arrangements, the molten penetration between hollow spheres was studied and observed that arrangement affects on melt penetration between hollow spheres. The interface between ceramic hollow spheres with aluminum matrix and steel mesh wires with matrix were verified by SEM. Steel wires have partial joining in interface with aluminum, while there is a separation between ceramic hollow spheres and matrix in interfaces.