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Synthesis and properties of open-celled metal foams

Synthese und Eigenschaften von offen porigen Metallschäumen
: Quadbeck, P.; Stephani, G.; Kümmel, K.; Adler, J.; Standke, G.


Yoon, D.Y.:
Progress in powder metallurgy. Proceedings of the 2006 Powder Metallurgy World Congress & Exhibition, PM 2006. Vol.2 : Held in Busan Exhibition & Convention Center (BEXCO), Busan, Korea, September 24 - 28, 2006
Uetikon-Zürich: Trans Tech Publications, 2007 (Materials Science Forum 534/536)
ISBN: 0-87849-419-7
ISBN: 978-0-87849-419-4
Powder Metallurgy World Congress & Exhibition (PM) <2006, Busan, Korea>
Conference Paper
Fraunhofer IFAM, Institutsteil Pulvermetallurgie und Verbundwerkstoffe Dresden ()
Fraunhofer IKTS ()
Schaummetall; Pulvermetallurgie; Sintern; Polyvinylalkohol; ausbrennbarer Zusatz; Mikrostruktur; nicht-rostender Stahl; Polyurethan; Massendichte

Open-celled metal foams were synthesized using a replication technique. Therefore a reticulated polyurethane template was coated by a slurry and removed thermally, followed by a sintering step. Since the process is feasible for a multiplicity of metals the expts. were performed on the example of stainless steel 316L. Highly porous components were obtained showing adjustable densities between 0.3 and 2.0 g/cm3. The cell structure is exceedingly homogeneous and the cell sizes may be chosen in the range of 10 - 80 ppi. In order to characterize the properties, compression tests and acoustical tests were carried out. A significant influence of the d. and the cell size on the acoustical and mech. properties was noticed.