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A three-dimensional nanoporous bimetallic Ag-Cu alloy with uniform chemical composition has been fabricated by dealloying Mg65Ag12.5Cu12.5Y10 metallic glass in dilute (0.04M) H2SO4 aqueous solution under free-corrosion conditions. The nanoporous Ag-Cu evolves through two distinct stages. First, ligaments of the nanoporous structure, consisting of supersaturated Ag(Cu) solid solution with a constant...
Mg 90−x Cu x Y 10 glassy precursors have been used to synthesize nanoporous copper (NPC) by electrochemical dealloying in H 2 SO 4 aqueous solution. The formation mechanism of NPC during electrochemical dealloying of Mg 90−x Cu x Y 10 metallic glasses is mainly governed by dissolution and diffusion processes at the precursor/solution...
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