Journal of the Korean Society of Propulsion Engineers (한국추진공학회지)

The Korean Society of Propulsion Engineers (한국추진공학회)
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Numerical Study on Normal Propagation Bimetallic Reaction Wave in Al/Ni Nano-Multilayers

알루미늄/니켈 나노박막다층 내 수직방향 이종금속 반응파 전파 해석연구

  • Kim, Kyoungjin (Department of Mechanical System Engineering, Kumoh National Institute of Technology)
  • Received : 2021.10.26
  • Accepted : 2022.01.17
  • Published : 2022.02.28
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Abstract

Present modeling study of nanoenergetics focuses on the numerical simulation of reaction wave propagation in normal direction across nanoscale multilayers of aluminum and nickel combination. The governing equations for atomic and thermal diffusion are employed in one-dimensional semi-infinitely alternating Al/Ni multilayered structures and the numerical results show the established patterns of quasi-steady intermetallic reaction waves. Also, the reaction wave speed is confirmed to be highly independent of reaction wave directions in such nanoenergetic structures.

본 나노에너지 기술 해석연구에서는 알루미늄/니켈 나노 다층박막구조 내 이종금속 반응파의 박막층 수직방향 전파현상을 대상으로 모델링 및 해석을 진행하였다. Al/Ni층이 교차하는 반무한영역에서 열 및 화학종 확산 방정식을 기반으로 1차원적 전산해석을 수행하였다. 해석결과로 이종금속 반응파의 수직방향 정상 전파 확립 등 반응파 특성을 발견하였다. 수평방향 전파현상 해석과 비교하여 이와 같은 나노구조물에서 반응파 자체전파속도에 대한 방향성 변화 영향이 매우 약하게 나타남을 확인하였다.

Keywords

Acknowledgement

본 연구는 금오공과대학교 학술연구비에 의하여 지원된 논문이다(과제번호: 2019-104-002).

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