Effect of cell size on the microarchitectural and physicomechanical response in open-cell Al foam made through template method

Pandey, Ashutosh; Dubey, Ruchi; Jain, Hemant; Abhas, Amit; Kumar, Rajeev; Gupta, G.K.; Siram, S; Chilla, Venkat; Mondal, D.P.

doi:10.1016/j.matchemphys.2023.127341

Cited by 6 publications

(1 citation statement)

References 28 publications

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“…However, in this study, the effective thermal conductivity of the foams according to the structural conditions was not considered. Although various studies have reported the effective thermal conductivity of open-cell-type aluminum foams with changes in structural conditions [12,[38][39][40][41], the trends observed in these studies do not align. The effective thermal conductivity of open-cell-type aluminum foams can affect the heat-dissipation ability of the foam.…”

Section: Heat Dissipationmentioning

confidence: 89%

Heat Dissipation of Open-Cell-Type Aluminum Foams Manufactured by Replication-Casting Process

Kim,

Ha,

Lee

et al. 2024

Metals

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Open-cell-type aluminum foam demonstrates excellent heat dissipation owing to interconnected pores. In this study, open-cell-type aluminum foams with various pore sizes and porosities were fabricated using the replication-casting process, which is a relatively simple process. The porosity of the manufactured foams ranged from approximately 55% to 62%. To assess the heat dissipation of the manufactured foams, an air-cooling system was designed. The device could pass a controlled amount of air through the connected pores, simultaneously measuring pressure drop ∆P and temperature changes. It was confirmed that the open-cell-type aluminum foams exhibited a very high cooling rate in the initial cooling phase, and the thermal behavior is influenced by structural characteristics. At a porosity of 62%, the initial maximum cooling rate was measured to be 1.41 ℃/s for a pore size of 0.7~1.0 mm, and it was observed to significantly increase to 3.82 ℃/s for a pore size of 2.8~3.4 mm. Furthermore, for the same pore size, an increase in porosity resulted in an increase in the initial cooling rate. Lager pore sizes and higher porosities led to lower pressure drop ∆P and improved airflow, enhancing the cooling efficiency of open-cell-type aluminum foams.

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