Production of Aluminium Foam and the Effect of Calcium Carbonate as a Foaming Agent

Aboraia, Mohammed S.; Sharkawi, R.; Doheim, M.A.

doi:10.21608/jesaun.2011.127552

Cited by 6 publications

(1 citation statement)

References 4 publications

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“…Additionally, in recent investigations for achieving porosities in composite foams fabricated by powder metallurgical method sodium chloride (NaCl), carbamide particles have been utilized [32][33][34][35][36]. These allow the porosities to be tailored, resulting in a porous structure with control over the shape, pore fraction and size [37].…”

Section: Introductionmentioning

confidence: 99%

Microstructure and Strengthening Effect of Coated Diamond Particles on the Porous Aluminum Composites

et al. 2023

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In this work, porous Al alloy-based composites with varying Ti-coated diamond contents (0, 4, 6, 12 and 15 wt.%) were prepared, employing the powder metallurgy route and using a fixed amount (25 wt.%) of polymethylmethacrylate (PMMA) as a space holder. The effects of the varying wt.% of diamond particles on the microstructure, porosities, densities and compressive behaviors were systematically evaluated. The microstructure study revealed that the porous composites exhibited a well-defined and uniform porous structure with good interfacial bonding between the Al alloy matrix and diamond particles. The porosities ranged from 18% to 35%, with an increase in the diamond content. The maximum value of plateau stress of 31.51 MPa and an energy absorption capacity of 7.46 MJ/m3 were acquired for a composite with 12 wt.% of Ti-coated diamond content; beyond this wt.%, the properties declined. Thus, the presence of diamond particles, especially in the cell walls of porous composites, strengthened their cell walls and improved their compressive properties.

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