Garcia-Moreno, F.; Mukherjee, M.; Solórzano, E.; Banhart, J.: Metal foams - towards microcellular materials. International Journal of Materials Research 101 (2010), p. 1134-1139
10.3139/146.110385
Abstract:
Various techniques to manufacture low-density metallic foams containing sub-millimetre or even micrometre-sized pores are discussed and first trial experiments presented. Three strategies are evaluated: use of an intrinsic blowing agent, foaming under high pressure and foam control by mechanical pressure manipulation. In all three cases, average pore diameters well below 1 mm could be achieved for some aluminium or zinc-based foams while keeping the relative density in a range between 20% and 50% of the full metal density.