Compressive properties of closed-cell aluminum foams with different contents of ceramic microspheres |
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| Affiliation: | 1. Centre for Mass and Thermal Transport in Engineering Materials, Discipline of Mechanical Engineering, University of Newcastle, University Drive, Callaghan, NSW 2308, Australia;2. Faculty of Mechanical Engineering, University of Maribor, Smetanova 17, SI-2000 Maribor, Slovenia;3. Faculty of Electrical Engineering, Mechanical Engineering and Naval Architecture, University of Split, R. Boškovića 32, HR-21000 Split, Croatia |
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| Abstract: | In this paper, closed-cell aluminum foams with different kinds and contents of ceramic microspheres are obtained using melt-foaming method. The distribution and the effects of the ceramic microspheres on the mechanical properties of aluminum foams are investigated. The results show that both kinds of ceramic microspheres distribute in the foams uniformly with part in the cell wall matrix, some in adhere to the cell wall surface and part embed in the cell wall with portion surface exposed to the pores. Ceramic microspheres have an important effect on the yield strength, mean plateau stress, densification strain and energy absorption capacities of aluminum foams. Meanwhile, the content of ceramic microsphere in aluminum foams should be controlled in order to obtain good combination of compressive strength and energy absorption capacity. The reasons are discussed. |
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| Keywords: | Aluminum foam Melt foaming method Compressive property Ceramic microspheres |
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