Journal of Powder Materials (한국분말재료학회지)

The Korean Powder Metallurgy & Materials Institute (한국분말재료학회 (*구 분말야금학회))
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In-situ Particle Characterization of Cu Nanopowder using Scanning Mobility Particle Sizer in Pulsed Wire Evaporation Method

전기폭발법에서 SMPS를 이용한 Cu 나노분말의 실시간 입자특성평가

  • 이창우 (한양대학교 재료화학공학부) ;
  • 맹덕영 (한국원자력연구소 원전재료 동적손상평가 연구실) ;
  • 박중학 (한국원자력연구소 원전재료 동적손상평가 연구실) ;
  • 유지훈 (한양대학교 재료화학공학부) ;
  • 이재훈 (한양대학교 재료화학공학부) ;
  • 이창규 (한국원자력연구소 원전재료 동적손상평가 연구실) ;
  • 김흥회 (한국원자력연구소 원전재료 동적손상평가 연구실)
  • Published : 2003.08.01
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Abstract

Synthesis and characteristics of Cu nanopowder were considered by in-situ characterization method using SMPS in pulsed wire evaporation process. With increasing pressure in chamber, particle size and degree of agglomeration increased by increase of collision frequency. Also, it was found from the XRD analyses and BET measurements that crystallite size and particle size decreased with elevating applied voltage. However, SMPS measurements and TEM observation revealed the increase of particle size and degree of agglomeration with increase of applied voltage. These results suggested that particle growth and agglomeration depend on overheating factor in chamber at the early stage and thermal coagulation in filtering system during powder formation until collection.

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