Fe foam with above 90% porosity and 2 millimeter pore size was successfully fabricated by a slurry coating process. In this study, the binder contents were controlled to produce the Fe foam with different pore size, strut thickness and porosity. Firstly, the slurry was prepared by uniform mixing with Fe powders, distilled water and polyvinyl alcohol(PVA) as initial materials. After slurry coating on the polyurethane(PU) foam the sample was dried at 80oC. The PVA and PU foams were then removed by heating at 700oC for 3 hours. The debinded samples were subsequently sintered at 1250oC with holding time of 3 hours under hydrogen atmosphere. The three dimensional geometries of the obtained Fe foams with open cell structure were investigated using X-ray micro CT(computed tomography) as well as the pore morphology, size and phase.

• 최진호(한국기계연구원 부설 재료연구소 분말기술연구실, 부산대학교 재료공학과) | Jin Ho Choi
• 양상선(한국기계연구원 부설 재료연구소 분말기술연구실) | Sangsun Yang
• 김양도(부산대학교 재료공학과) | Yang-Do Kim Corresponding Author
• 윤중열(한국기계연구원 부설 재료연구소 분말기술연구실) | Jung-Yeul Yun Corresponding Author