Abstract
Metal foams well-known for there lightweight and wide applications especially the energy absorbing property. These foams consist of 5 to 25% metal and 75 to 95% of gas. Among metallic foams, aluminium foams find their application in many domains like architectural design, light weight construction, orthopaedic, automotive industries, energy absorption, acoustics and thermal applications. The mechanical behaviour of the aluminium foams and the thermal effects on them were studied. Different processing methods to improve the foamability and strengths are also discussed. This paper overviews the physical, mechanical and thermal behaviour of the aluminium foams, their processing methods, their applications, testing and validation of properties for specific requirements.
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