Abstract
This research studies the effect of multi-wall carbon nanotube (MWCNT) coated nickel to foaming time on the foam expansion and the distribution of pore sizes MWCNT reinforced AlMg4Si8 foam composite by powder metallurgy process. To control interface reactivity and wettability between MWCNT and the metal matrix, nickel coating is carried out on the MWCNT surface. Significantly, different foaming behavior of the MWCNT coated nickel reinforced AlMg4Si8 was studied with a foaming time variation of 8 and 9 min. Digital images generated by the imaging system are used with the MATLAB R2017a algorithm to determine the porosity of the surface and the pore area of aluminum foam efficiently. The results can have important implications for processing MWCNT coated nickel reinforced aluminum alloy composites.
Highlights
The first production of metallic foam was carried out by Benjamin Sosnick in 1948 [1], extensive research and application of metallic foam in many manufacturing sectors such as the automotive and aerospace industries have been carried out
The results demonstrate that the effect of surface treatment of the multi-wall carbon nanotube (MWCNT) influence the expansion and microstructure of AlMg4Si8 foam nanocomposite and theofcell density decrease with the addition of reinforcement effect of surface treatment thenumber influence the expansion and microstructure of AlMg4Si8 foam nanocomposite and the cell number density decrease with the addition of reinforcement coated nickel in
The results show the effect of MWCNT coated nickel to foaming time on the reinforced reinforced aluminum foam for 8 min show a smallertime sizeon of the pore reinforcedaluminum
Summary
The first production of metallic foam was carried out by Benjamin Sosnick in 1948 [1], extensive research and application of metallic foam in many manufacturing sectors such as the automotive and aerospace industries have been carried out. Metal foams have properties such as high strength to weight ratio, high energy absorption capacity, large specific surface, high gas and liquid permeability, and low thermal conductivity [2]. Basic characteristics such as the relative density, cell structure, homogenity of cell morphology and optimum mean average equivalent diameter of pores are things that affect the use of metal foams [3]. The effect of surface treatment on MWCNT (chemical oxidation followed by nickel coating on MWCNT) reinforced AlMg4Si8 by powder metallurgy has been studied, showing uniformly distribution and good bonding on MWCNT reinforced aluminum foam [14]. Determination of surface porosity, pore area and foam shape of the aluminum foam was obtained through an imaging system with the MATLAB R2017a algorithm
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