New preparation method of porous copper powder through vacuum dealloying

Porous copper powder (PCP) was prepared successfully by vacuum dealloying using Commercial brass powder. PCP shows a three-dimensional continuous porous structure with pore size of 2 ± 1 μm. Vacuum dealloying was demonstrated one effectively preparation method for PCP, and vacuum dealloying can be used to prepare other porous metal powder based on sublimation and kirkendall effect.