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A novel physical vapor deposition assisted freeze-casting method was used to fabricate porous alumina. Through reserving a gap between the cold finger and the ceramic particle suspension, the lamellar ice crystals were firstly formed on the surface of the cold finger and grew toward the suspension by physical vapor deposition. Using a moderate gap width (2.5mm), the previously deposited lamellar ice...
Fe 2 O 3 scaffolds with an open porosity of ~81% were fabricated by freeze casting of a suspension of hematite nano-particles in liquid camphene, sublimation of the camphene, and sintering of the interconnected walls of hematite particles concentrated in the interdendritic spaces. At high solidification velocity, the camphene dendrites created, after sublimation, equiaxed, interconnected...
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