Processing of Cellular Magnesium Materials

Abstract

Especially cellular aluminum materials have been extensively developed and investigated in the recent years. But also magnesium is a suitable metal for cellular metals due to its low density. By a special casting method open‐cellular magnesium with a very low density of 0.05 g/cm3 is fabricated that shows high potential for usage as energy absorbers.

Porous magnesium-based scaffolds for tissue engineering

“…Changing the pore size, pore shape, porosity, and pore distribution can affect the mechanical properties [48,83,84]. Increasing porosity results in the decrease of compression strength, yield strength, and Young's modulus [48,83,84].…”

“…Increasing porosity results in the decrease of compression strength, yield strength, and Young's modulus [48,83,84]. The mechanical properties of porous magnesium prepared by the green compacts method using carbamide particles as the space holder and under 100 MP uniaxial pressure were studied to demonstrate the dependence of mechanical properties on pore size and porosity [48].…”

Temperature Distributions and Thermoelectrical Performance of a Porous FeSi<SUB>2</SUB> Element in a Steady State of Reciprocatory Flow Combustion

“…Echigo et al have shown that the minimum required heating value of the gas to sustain combustion in the ceramic foam is roughly around about 10-50 kWh/m 2 , while the maximum generated power was 226 Wh/m 2 in this experiment. These results imply that once we could control the volumetric surface areas of the porous thermoelectric elements by using novel fabrication techniques, such as evacuation casting into the open cellular mold, 20) unidirectional solidification, 21) it would become feasible to increase the conversion efficiency to those theoretically predicted.…”

Current Status and Recent Developments in Porous Magnesium Fabrication

“…During both, the plastic pattern is degraded endothermically and replaced by liquid metal (Figure 9). Polyurethane [38] or epoxy [39] foam with gating system, for example, made of wax, is placed at the mold bottom and plaster is poured into it. The plaster-polymer composite is heated to 500-700 C to burn out the plaster and evaporate the foam.…”

“…Preform infiltration Density [g cm À3 ] 0.39-0.57 [32]a) 0.15-0.89 [85] Compressive strength [MPa] 13-15 [29] , 1.2-2.5 [32]a) 0.27-0.51 [85] Pattern casting Density [g cm À3 ] >0.05 [38]e) 0.16-0.25 [86] www.advancedsciencenews.com www.aem-journal.com production method and parameters. Porosities obtained in GASAR processes are connected with hydrogen solubility in liquid metal.…”