Berlin 2005 – wissenschaftliches Programm
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M: Metallphysik
M 32: Poster TU B (Symposium Tomographic Methods in Materials Research M-32.32-55)
M 32.42: Poster
Montag, 7. März 2005, 14:30–16:30, Poster TU B
Analysis of the ageing of metallic foams by means of quantitative micro-computed tomography (µCT) — •Oliver Brunke1, Stefan Odenbach1, and Felix Beckmann2 — 1ZARM Universität Bremen, Am Fallturm, 28359 Bremen — 2GKSS-Forschungszentrum Geesthacht, Max-Planck-Str. 1, 21502 Geesthacht
Metallic foams, and especially those made from Al and its alloys, have become a major topic for both industrial and basic research throughout the last decade. The physical properties of solid metallic foam which are relevant for most applications like e.g. in automotive or aerospace industry are strongly affected by its structure parameters, like for instance pore size, shape and distribution, the location of inhomogeneities or the distribution of solid material between films and Plateau borders. On the other hand, these parameters directly depend on the temporal development, stability and ageing of the liquid foam system. The ageing behaviour of Al foams produced by a powder metallurgical route has been observed by means of Synchrotron- as well as cone beam µCT. We will present methods for the analysis of the development of the structure of metallic foams using 3D image processing techniques. This allows us the three dimensional and non-destructive determination of the temporal behaviour of e.g. the pore size or the cell wall material of the foam system.