Journal of Korea Foundry Society (한국주조공학회지)

Korea Foundry Society (한국주조공학회)
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Solidification Behaviors of the Rapidly Solidified Metallic Powders and Development of the Powder Making Process.;Part I : Development of the Powder Making Process

급속응고된 금속분말의 응고거동 및 제조법에 관한 연구;Part I : 급속응고 제조법

  • Kim, Jong-Yoon (Dept. of Metallurgy College of Eng., Korea University) ;
  • Yoon, Woo-Young (Papidly Solidified Materials Research Center Chungnam National University)
  • 김종윤 (고려대학교 공과대학 금속공학과) ;
  • 윤우영 (충남대학교 급속응고신소재연구소)
  • Published : 1995.04.20
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Abstract

New metallic powder making processes, named "Centrifugal Emulsification Process(CEP)" and "Mixer and Settler(MS)" have been developed to synthesize rapid solidified metallic powders. Through CEP and MS processings, the high temperature metals as well as the low temperature alloys are manufactured. Also, the effects of rapid solidification on the undercooling, solidification rate and crystallization behaviors can be evaluated effectively through the processes. The standard deviations of the synthesized typical Pb-Sn eutectic powders are 1.63 and 1.51 for CEP and MS respectively, and the average size of the MS powders was $18{\mu}m$. The possibility of the customized not only size and shape control but microstructure control was also shown. Both of the new methods can be applied to continuous powder making processes.

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