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Citation: ZHANG Tao, GU Ting-Kun, QI Yuan-Hua. Evolvement on the Microstructure of Molten Compound AuCu₃ in Rapid Cooling[J]. Acta Physico-Chimica Sinica, ;2005, 21(02): 173-176. doi: 10.3866/PKU.WHXB20050212 shu

Evolvement on the Microstructure of Molten Compound AuCu₃ in Rapid Cooling

1.
School of Physics and Microelectronics, Shandong University, Jinan　250061; School of Electrical and Engineering, Shandong University, Jinan　250061

Received Date: 16 June 2004
Available Online: 15 February 2005

The dependence of pair distribution function of molten compound AuCu3 on temperature under rapid cooling conditions has been researched by molecular dynamics simulation technique. It is concluded that there exists noncrystal structure at 700 K from the result that the second peak of g(r) of molten AuCu3 has been splitted into two sub-peaks. The feature of version of cluster in molten AuCu3 has been investigated by Honeycutt pair analysis technique. It is demonstrated that the structural configuration in molten AuCu3 has remarkable variation during the formation of noncrystal according to the relationship between the bonded pairs, polyhedron and temperatures. The defective polyhedra in liquid AuCu3 have greatest change accompanying the changing temperatures. The noncrystal is not “frozen liquid”.
- FS(Finnis-Sinclair) many-body potential;Molecular dynamics simulation;Rapid solidification
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沈阳化工大学材料科学与工程学院沈阳 110142

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Evolvement on the Microstructure of Molten Compound AuCu3 in Rapid Cooling

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通讯作者: 陈斌, bchen63@163.com

Evolvement on the Microstructure of Molten Compound AuCu₃ in Rapid Cooling