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구리박막에서 수은 클러스터의 충돌거동에 대한 분자동역학적 연구
정흥철(HeungCheol Jeong),고선미(SunMi Go),최경민(GyungMin Choi),김덕줄(DuckJool Kim) 대한기계학회 2007 대한기계학회 춘추학술대회 Vol.2007 No.5
The interaction between metal molecules and liquid metal molecules was modeled in the molecular scale and simulated by the molecular dynamics method in order to understand behaviors of the cluster on metallic surface in collision process. Lennard-Jones potential had been used as intermolecular potential, and only attraction and repulsion had been used for the behavior of the cluster on the metal surface. As results, the behavior of the cluster was so much influenced by the cluster of liquid metal temperature and function of molecules forces, such as attraction and repulsion, in the collision progress. These results of simulation will be the foundation for the micro fabrication manufacturing by using spray application technology.
정흥철(HeungCheol Jeong),고선미(SunMi Go),최경민(GyungMin Choi),김덕줄(DuckJool Kim) 대한기계학회 2007 대한기계학회 춘추학술대회 Vol.2007 No.5
The purpose of this study is to calculate the behavior of molecules for the generation of homogeneous thin-films in the process of spray deposition. The calculation system was composed of a suface molecular region and droplet molecular region. The thin-film was generated when droplet molecules fell to surface molecules. Lennard-Jones potential had been used as intermolecular potential, and only attraction and repulsion had been used for the behavior of the droplet on the solid surface. As results, the behavior of the droplet was so much influenced by the surface temperature in the spray deposition process. High temperature of surface has higher porosity and larger spread area. It was found that simulation results generally agreed well with previous the experimental results. This simulation result will be the foundation for the deposition processes of industry.