Abstract
By using Ca particles as thickening agent and CaCO3 powder as blowing agent, cellular Mg foams with homogeneous close pore structures were fabricated by melt-foaming method. It has been proven that the blowing gas to foam melted Mg is CO rather than CO2. The CO is released from the liquid-solid reaction between Mg melt and CaCO3. The compression and corresponding energy absorption properties of cellular pure Mg were investigated. Compared to Al/Al alloy foams, the cellular Mg foams possess superior comprehensive mechanical properties. The cellular Mg foam might have promising future in the practical engineering applications.
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