Replication is one of the processing techniques used for the production of porous metal sponges. In this paper one implementation of the method for the production of open celled porous aluminum is shown in detail.
Elizondo Luna, E. M., Barari, F., Woolley, R., Goodall, R. Casting Protocols for the Production of Open Cell Aluminum Foams by the Replication Technique and the Effect on Porosity. J. Vis. Exp. (94), e52268, doi:10.3791/52268 (2014).