한국추진공학회지 (Journal of the Korean Society of Propulsion Engineers)

  • 제18권4호
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  • Pages.9-17
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  • 2014
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  • 1226-6027(pISSN)
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  • 2288-4548(eISSN)
한국추진공학회 (The Korean Society of Propulsion Engineers)
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비전해 방법을 이용한 니켈 코팅 알루미늄 분말 제조 및 열물성 평가

Fabrication and Thermophysical Properties of Nickel-coated Aluminum Powder by Electroless Plating

  • Lee, Sanghyup (School of Mechanical Engineering, Yonsei University) ;
  • Lim, Jihwan (School of Mechanical Engineering, Yonsei University) ;
  • Noh, Kwanyoung (School of Mechanical Engineering, Yonsei University) ;
  • Yoon, Woongsup (School of Mechanical Engineering, Yonsei University)
  • 투고 : 2014.06.06
  • 심사 : 2014.07.10
  • 발행 : 2014.08.01
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초록

본 연구에서는 고에너지 알루미늄 분말의 점화성 향상을 위해 자연상태 알루미나 산화막을 화학적으로 제거하고 니켈 코팅을 수행하였다. 니켈 코팅은 무전해 방법을 사용하였으며 SEM/EDS에 의한 표면 분석을 통해 시간에 따른 니켈 코팅 정도를 정성 정량적으로 확인하였다. 또한 XRD에 의한 화학종 분석과 TGA/DSC를 이용한 공기 환경 내에서의 열물성 분석을 수행하였고 이를 통해 공기 산화제 분위기에서의 니켈 코팅 된 알루미늄 분말의 점화촉진 메커니즘을 설명하였다. 이러한 결과를 통해 니켈 코팅 된 알루미늄이 코팅 되지 않은 알루미늄보다 좋은 점화성을 갖는 것을 정성적으로 확인하였다.

In this study, in order to improve the ignitability of high energy aluminum powder, natural oxide films (alumina) were chemically removed, and instead nickel coat was applied. We used an electroless plating for nickel coating and confirmed quantitatively and qualitatively a time-dependent degree of nickel coating through analysis of surface by SEM/EDS. We also conducted element analysis by XRD and thermal properties by TGA/DSC in air oxidizer environment. There results explained the ignition enhancement mechanism of the nickel-coated aluminum powder in air. The difference between coated and un-coated aluminum powder, the effectiveness of coated powder has better ignitability.

키워드

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