Waste aluminium based multilayer hybrid and functional graded composite foam and the production method thereof
AssigneeOndokuz Mayis Universitesi
InventorMevlut Gurbuz
Life of this patent
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Abstract
The present invention relates to multi-layered hybrid and functional graded aluminum foam obtained from waste aluminum beverage cans, and to the production method thereof. This multi-layered aluminum composite foam can be used in bullet-proof armors in many fields such as aviation, defense industry, automotive and rail systems, in decreasing the impact effect in fast trains and automobiles, in vibration damping, in absorbing energy during impact and shock, in electromagnetic shields, as air buffer panel in carrying heavy vehicles such as tanks, in providing sound insulation on motorways and for flame retardant purposes.
Claims17
Multi layered aluminum composite foam, characterized in that it comprises a dense layer (1) comprising 100% pure aluminum layer (4) at one end of the composite foam and at least two hybrid and functional graded layers (5) and foam layer (3) in hybrid structure at the other end of the composite foam.
A production method of multi layered aluminum composite foam according to any one of the preceding claims, characterized by comprising below steps;
- i. Melting the waste aluminum cans/containers,
- ii. Casting so as to make one end of the multi layered aluminum composite foam 100% pure aluminum by using the melted waste aluminum can,
- iii. Making gradual casting for different ratios of aluminum, graphene and ceramic in melted in a different melting pot, while that layer is in semi-solid state,
- iv. Obtaining the hybrid and functional grade dense layer by repeating the step (ii) until the layer that contains maximum ceramic amount is obtained, when that layer becomes semi-solid,
- v. Adding the solution and foam/pore making agent including aluminum, graphene and ceramic amounts in different ratios, onto the dense functional grade layer in semi-solid form, and then and mixing them,
- vi. Adding the resulting multilayer structure to water and boiling above 100° C., removing the foaming/pore-forming agent and forming the hybrid layer foam layer at the other end of the multilayer aluminum composite foam to obtain the final product multilayer aluminum composite foam.
Dependencies are inferred from the claim text.