Particle and aerosol research (한국입자에어로졸학회지)

Korean Association for Particle and Aerosol Research (한국입자에어로졸학회)
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Fabrication and Oxidation Behaviors of Nickel-coated Aluminum Powders for Energetic Applications

에너제틱 응용을 위한 Ni코팅된 Al분말소재 제조 및 산화거동

  • 김경태 (한국기계연구원 부설 재료연구소) ;
  • 우재열 (한국기계연구원 부설 재료연구소) ;
  • 유지훈 (한국기계연구원 부설 재료연구소) ;
  • 이혜문 (한국기계연구원 부설 재료연구소) ;
  • 임태수 (한국기계연구원 부설 재료연구소) ;
  • 최윤정 (국방과학연구소) ;
  • 김창기 (국방과학연구소)
  • Received : 2014.12.15
  • Accepted : 2014.12.23
  • Published : 2014.12.30
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Abstract

In this study, nickel-coated aluminum (Ni/Al) powders were synthesized for the utilization of energetic applications. Oxide materials present at the surface of Al powders of $45{\mu}m$ in averaged size were removed by using sodium hydroxide(NaOH) solution which is used for controlling pH. Nickel material is coated into the surface of oxide-removed Al powders by electroless-plating process. The microstructure of fabricated Ni/Al powders shows that nickel layers with a few hundreds nm were very homogeneously formed onto the surface of Al powders. The oxidation behavior of Ni/Al exihibit somewhat faster oxidation rate than that of pure Al with surface oxidation. Also, the higher exothermic reaction was observed from the Ni/Al powders. From the result of this, nickel coating is very promising method to obtain highly reactive and safe Al powders for energetic applications.

Keywords

Acknowledgement

Supported by : 국방과학연구소

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