The porous metals are known as relatively excellent characteristic such as large surface area, light, lower heat capacity, high toughness and permeability. The Fe-Cr-Al alloys have high corrosion resistance, heat resistance and chemical stability for high temperature applications. And then many researches are developed the Fe-Cr-Al porous metals for exhaust gas filter, hydrogen reformer catalyst support and chemical filter. In this study, the Fe-Cr-Al porous metals are developed with Fe-22Cr-6Al(wt) powder using powder compaction method. The mean size of Fe-22Cr-6Al(wt) powders is about 42.69 μm. In order to control pore size and porosity, Fe-Cr-Al powders are sintered at 1200~1450oC and different sintering maintenance as 1~4 hours. The powders are pressed on disk shapes of 3 mm thickness using uniaxial press machine and sintered in high vacuum condition. The pore properties are evaluated using capillary flow porometer. As sintering temperature increased, relative density is increased from 73% to 96% and porosity, pore size are decreased from 27 to 3.3%, from 3.1 to 1.8 μm respectively. When the sintering time is increased, the relative density is also increased from 76.5% to 84.7% and porosity, pore size are decreased from 23.5% to 15.3%, from 2.7 to 2.08 μm respectively.

Abstract
 1. 서 론
 2. 실험방법
 3. 결과 및 고찰
 4. 결 론
 Acknowledgments
 References

• 구본욱(울산대학교 첨단소재공학부, 한국기계연구원 부설 재료연구소 분말기술연구실) | Bon-Uk Koo
• 이수인(고려용접봉 중앙연구소) | Su-in Lee
• 박다희(한국기계연구원 부설 재료연구소 분말기술연구실) | Dahee Park
• 윤중열(한국기계연구원 부설 재료연구소 분말기술연구실) | Jung-Yeul Yun Corresponding author
• 김병기(울산대학교 첨단소재공학부) | Byoung-Kee Kim Corresponding author