Manufacturing routes for metallic foams

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A review of the recent trends on core structures and impact response of sandwich panels (2021, neutral): “Metallic foams could be fabricated with one of three methods: foaming of injecting gas into the liquid metal, foaming of melts with blowing agents and foaming of powder compacts.(73) Polymeric foams are manufactured by injecting the gas into liquid polymer and solidifying through the cross-linking o”
Direct approach-based analysis of plates composed of functionally graded materials (2008, background): “Engineering structures made of porous materials, especially metal foams, have been used different applications in the last decades [9,10,12].”
Additive manufacturing of metallic cellular materials via three-dimensional printing (2011, background): “[1, 3 ]) or an ordered repetition of a unit cell (e.g., joining crimped sheet metal into a corrugated form [8], bonding metal textile screen meshes [9], sand/investment casting trussed lattices [10], etc.[11]).”