Stanzick, H.H.StanzickKlenke, J.J.KlenkeBanhart, J.J.BanhartDanilkin, S.S.Danilkin2022-03-032022-03-032002https://publica.fraunhofer.de/handle/publica/20138310.1007/s0033901012002-s2.0-0347297412Two kinds of experiments are presented in this paper: In the first lead alloy foams were generated in a furnace by expanding a foamable precursor material containing metal and a blowing agent. Vertical columns of liquid metal foam were scanned with a beam of neutrons while recording the time-dependent local neutron transmission. The resulting transmission profiles reflect the kinetics of material redistribution in liquid metallic foams under the influence of gravity (drainage). In the second experiment pre-fabricated solid lead foams were re-melted in a furnace. Neutron transmission profiles were also obtained in these experiments. Results of each type of experiment are presented and compared with theoretical predictions for the density profile of aqueous foams.en620660671621journal article