Introduction of a new type of metal foam (Metallic bubble wrap)

摘要

New type of metallic foam is processed in the form of thin sheet aluminum with longer lifetime and more reliable properties than currently used metal foams. The current closed cell metallic foams are highly porous and non-uniform and their deformation behavior is not predictable, particularly in a thin sheet form. The new material has combined rolling technique with careful placement of foaming agent to produce thin sheet metal foams (a metallic version of bubble wraps) with regular pore structure and possibility of further addition of reinforcement. Both tension test results and bending test results show improvements in mechanical properties of aluminum bubble wrap.