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기계적 합금화하여 제조한 Fe-5Y2O3 합금분말의 나노산화물 석출거동 KCI 등재

A Precipitation Behavior of Nano-Oxide Particles in Mechanically Alloyed Fe-5Y2O3 Powders

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

A precipitation behavior of nano-oxide particle in Fe-5Y2O3 alloy powders is studied. The mechanically alloyed Fe-5Y2O3 powders are pressed at 750oC for 1h, 850oC for 1h and 1150oC for 1h, respectively. The results of Xray diffraction pattern analysis indicate that the Y2O3 diffraction peak disappear after mechanically alloying process, but Y2O3 and YFe2O4 complex oxide precipitates peak are observed in the powders pressed at 1150oC. The differential scanning calorimetry study results reveal that the formation of precipitates occur at around 1054oC. Based on the transmission electron microscopy analysis result, the oxide particles with a composition of Y-Fe-O are found in the Fe-5Y2O3 alloy powders pressed at 1150oC. It is thus conclude that the mechanically alloyed Fe-5Y2O3 powders have no precipitates and the oxide particles in the powders are formed by a high temperature heat-treatment

저자
  • 김가언(한양대학교 신소재공학과) | Ga Eon Kim
  • 노상훈(한국원자력연구원 원자력소재개발부) | Sanghoon Noh
  • 최지은(한국원자력연구원 원자력소재개발부) | Ji Eun Choi
  • 김영도(한양대학교 신소재공학과) | Young Do Kim
  • 김태규(한국원자력연구원 원자력소재개발부) | Tae Kyu Kim Corresponding Author