Journal of the Korean Society of Propulsion Engineers (한국추진공학회지)

The Korean Society of Propulsion Engineers (한국추진공학회)
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Computational Study of Intermetallic Reaction Propagation in Nanoscale Boron/Titanium Metallic Multilayers

보론/티타늄 나노박막다층 내 이종금속간 화학반응 전파특성 해석연구

  • Kim, Kyoungjin (Department of Mechanical System Engineering, Kumoh National Institute of Technology) ;
  • Park, Joong-Youn (Department of Mechanical System Engineering, Kumoh National Institute of Technology)
  • Received : 2017.01.12
  • Accepted : 2017.02.22
  • Published : 2017.06.01
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Abstract

The analytical modeling has been established on the self-propagation of intermetallic reaction in the spanwise direction of highly reactive boron and titanium nanoscale multilayers. Assuming that the reaction obeys Arrhenius kinetics, two-dimensional computations are carried out for heat and atomic species diffusion with exothermic reaction model in order to simulate the self-propagation of intermetallic reaction. The effects of bimetallic layer thickness and thickness ratio on the reaction propagation speed are tested and discussed in addition to the assessment of pre-mixing zone effects.

빠른 반응성 및 자체전파특성을 가지는 보론/티타늄 나노 다층박막구조를 대상으로 박막층 수평방향으로의 이종금속간 화학반응 및 화염 전파현상 해석 모델링을 수립하였다. 이종금속간 화학반응은 Arrhenius 반응식을 가정하여 모델링하였으며, 열 및 화학종 확산, 발열 화학반응에 따른 화염 자체전파 현상에 대하여 2차원적 전산해석을 수행하였다. 보론 및 티타늄 박막층의 두께 및 두께비 등 나노구조 형상의 영향을 비롯하여 접촉층 예혼합 정도가 화염 자체전파속도에 미치는 영향을 분석하였다.

Keywords

References

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