급속응고된 금속분말의 응고거동 및 제조법에 관한 연구 ( Part 1 : 급속응고 제조법 ) = Solidification Behaviors of the Rapidly Solidified Metallic Powders and Development of the Powder Making Process ( Part 1 : Development of the Powder Making Process )

다국어 초록 (Multilingual Abstract)

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다국어 초록 (Multilingual 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㎛. 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.