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Formation of NiZr2 Binary Metallic Glass: Experimental and Molecular Dynamics Analyses |
| WANG Li;ZHANG Yan-Ning;MAO Xiu-Ming;PENG Chuan-Xiao |
| Key Laboratory of Liquid Structure and Heredity of Materials (Ministry of Education), Shandong University, Jinan 250061 |
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| Cite this article: |
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WANG Li, ZHANG Yan-Ning, MAO Xiu-Ming et al 2007 Chin. Phys. Lett. 24 2319-2322 |
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Abstract The local atomic structure of an amorphous NiZr2 alloy is identified by using x-ray diffraction, transmission electron microscopy, and differential scanning calorimeter. Based on the experimental results, molecular dynamics simulation is performed to investigate the glass formation of liquid NiZr2 alloy. Some
relevant features of the pair correlation functions are in good agreement with those obtained by experiment. The pair analysis parameters are calculated, suggesting that there exist icosahedral ordering, four-fold symmetrical bipyramid and triangular-faced polyhedral units in the amorphous NiZr2 structure. The result is beneficial to open avenues toward the understanding of fundamental theoretical problems of glass formation of simple binary alloys.
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| Keywords:
61.10.Nz
61.20.Ne
61.20.Ja
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Received: 05 December 2006
Published: 25 July 2007
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