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Materials 2018, 11(8), 1420; https://doi.org/10.3390/ma11081420

Application of Aluminium Flakes in Fabrication of Open-Cell Aluminium Foams by Space Holder Method

1
Laboratory of Manufacturing Technology, School of Mechanical Engineering, National Technical University of Athens, Heroon Polytechniou 9, 15780 Athens, Greece
2
Shipbuilding Technology Laboratory, School of Naval Architecture and Marine Engineering, National Technical University of Athens, Heroon Polytechniou 9, 15780 Athens, Greece
*
Author to whom correspondence should be addressed.
Received: 3 July 2018 / Revised: 7 August 2018 / Accepted: 10 August 2018 / Published: 13 August 2018
(This article belongs to the Special Issue Materials: 10th Anniversary)
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Abstract

In the current study, a first attempt at using aluminum flakes for the manufacture of open-cell aluminum foams with the space holder method is presented. The method involves powder mixing, compaction, leaching, and sintering processes. Saccharose particles were used as space holders, and multiple parameters were investigated to optimize the manufacturing processing route in order to produce high-quality open-cell aluminum foams with a simple, economic, and environmentally friendly method. The implementation of aluminum flakes leads to foams with 80 vol.% porosity, an excellent internal open-cell porous structure, low green compaction pressures, and does not require the use of binding additives. View Full-Text
Keywords: metal foam; aluminum foam; space holder method; aluminum flakes; saccharose particles metal foam; aluminum foam; space holder method; aluminum flakes; saccharose particles
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
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Papantoniou, I.G.; Markopoulos, A.P.; Pantelis, D.I.; Manolakos, D.E. Application of Aluminium Flakes in Fabrication of Open-Cell Aluminium Foams by Space Holder Method. Materials 2018, 11, 1420.

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