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Citation: Wang Li, Bian Xiu-Fang, Li Hui. Liquid-Solid Transition and Crystal Growth of Metal Cu by Molecular Dynamics Simulation[J]. Acta Physico-Chimica Sinica, ;2000, 16(09): 825-829. doi: 10.3866/PKU.WHXB20000912 shu

Liquid-Solid Transition and Crystal Growth of Metal Cu by Molecular Dynamics Simulation

1.
Institute of Material Science and Engineering,Shandong University of Technology,Jinan 250061

Received Date: 24 November 1999
Available Online: 15 September 2000

The solidification process of Cu melts has been performed at constant temperature and constant pressure by mean of molecular dynamic simulation technique. EAM(embedded- atom method) potential functions have been adopted to describe the atomic interaction. The pair correlation functions of liquid Cu at different cooling rate and temperature have been used to reveal the structural features of liquid, super- cooled liquid, glass state and crystal. The results indicate that the EAM potential function can well describe liquid- solid transition of Cu, the Cu melts become the glass state during relatively high cooling rate; and crystallize out during relatively low cooling rate. The structure transition of Cu in the cooling process has been analyzed through thermodynamics and kinetics. And the crystal growth of Cu has been observed by using crystal- liquid configuration method.
- Molecular dynamics simulation,
- EAM potential function,
- Pair correlation function,
- Thermodynamics,
- Kinetics,
- Crystal growth
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