Abstract
Open-cell porous copper (Cu) was fabricated by friction powder compaction (FPC) process, which requires no external heat sources. In this process, a mixture of Cu powder and sodium chloride (NaCI) powder as spacer particle are used as starting materials. The compacting of the powder mixture are conducted only by rotating tool plunged into the mixture. NaCl is removed by placing the sintered mixture in water, and pores are formed. Porous Cu with porosities of 60-80 pct was successfully fabricated. In this study, a relationship between leaching time and removal of NaCl were investigated, and pore structures of obtained porous Cu were nondestructively observed by X-ray CT. In addition the compressive response of obtained porous Cu was investigated.
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