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Original scientific paper

ANALYSIS OF PRODUCTION METHOD AND STABILIZING AGENT ON STRUCTURE OF ALUMINUM METAL FOAMS

By
Karla Grgić ,
Karla Grgić
Contact Karla Grgić

Faculty of Electrical Engineering, Mechanical Engineering and Naval Architecture, University of Split, Split, Croatia

Igor Ćulum ,
Igor Ćulum

Faculty of Electrical Engineering, Mechanical Engineering, and Naval Architecture, University of Split, Split, Croatia

Branimir Lela ,
Branimir Lela

Faculty of Electrical Engineering, Mechanical Engineering, and Naval Architecture, University of Split, Split, Croatia

Jure Krolo ,
Jure Krolo

Faculty of Electrical Engineering, Mechanical Engineering, and Naval Architecture, University of Split, Split, Croatia

Sonja Jozić
Sonja Jozić

Faculty of Electrical Engineering, Mechanical Engineering, and Naval Architecture, University of Split, Split, Croatia

Abstract

Aluminum alloy foams are a form of porous metal whose structure resembles the shape of natural materials such as coral, bone, sponge, etc. Due to their structure, these materials retain good mechanical properties of the base material while being significantly lighter than non-porous metal. Metal foams can be used as energy and vibration absorbers, heat exchangers, insulators, and filters. The main disadvantage of this type of material is its high production cost. To reduce production costs, aluminum alloy chips are used as base material. Foams are made of A360 and AA 7075 aluminum alloys. To produce a porous structure, CaCO3 is used as a foaming agent while Zn and CaO were added as stabilizing agents. The main goal of the paper was to investigate the difference in the shape of pores and relative density after foaming with different stabilizing agents.

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Citation

Funding Statement

This research has been supported by The Croatian Science Foundation through the project ALURECSS (IP-2020-02-8284).

Authors retain copyright. This work is licensed under a Creative Commons Attribution 4.0 International License. Creative Commons License

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