- 경사 다공성 Al-Cu 소결체의 제조
- ㆍ 저자명
- 변종민,김세훈,김진우,김영문,김영도,Byun. Jong-Min,Kim. Se-Hoon,Kim. Jin-Woo,Kim. Young-Moon,Kim. Young-Do
- ㆍ 간행물명
- 한국분말야금학회지
- ㆍ 권/호정보
- 2011년|18권 4호|pp.365-371 (7 pages)
- ㆍ 발행정보
- 한국분말야금학회
- ㆍ 파일정보
- 정기간행물| PDF텍스트
- ㆍ 주제분야
- 기타
In this study, gradient porous Al-Cu sintered body was fabricated by powder metallurgy processing. Al-Cu powder mixtures were prepared by low energy ball milling with various milling time. After ball milling for 3h, the shape of powder mixtures changed to spherical type with size of 100~500 ${mu}m$. Subsequently, Al-Cu powder mixtures were classified (under 150, 150~300 and over 300 ${mu}m$) and compacted (20, 50 and 100 MPa). Then, they were sintered at $600^{circ}C$ for various holding time (10, 30, 60 and 120 min) in $N_2$ atmosphere. The sintered bodies had 32~45% of porosity. As a result, the optimum holding time was determined to be 60 min at $600^{circ}C$ and sintered bodies with various porosity were obtained by controlling the compacting pressure.