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경사 다공성 Al-Cu 소결체의 제조 KCI 등재

Fabrication of Gradient Porous Al-Cu Sintered Body

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한국분말야금학회지 (Journal of Korean Powder Metallurgy Institute)
한국분말재료학회(구 한국분말야금학회) (Korean Powder Metallurgy Institute)
초록

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 . Subsequently, Al-Cu powder mixtures were classified (under 150, 150~300 and over 300 ) and compacted (20, 50 and 100 MPa). Then, they were sintered at for various holding time (10, 30, 60 and 120 min) in atmosphere. The sintered bodies had 32~45% of porosity. As a result, the optimum holding time was determined to be 60 min at and sintered bodies with various porosity were obtained by controlling the compacting pressure.

저자
  • 변종민 | Byun Jong-Min
  • 김세훈 | Kim Se-Hoon
  • 김진우 | Kim Jin-Woo
  • 김영문 | Kim Young-Moon
  • 김영도 | Kim Young-Do