期刊
JOURNAL OF PHYSICS-CONDENSED MATTER
卷 15, 期 31, 页码 L491-L498出版社
IOP PUBLISHING LTD
DOI: 10.1088/0953-8984/15/31/102
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It is well known that bulk metallic glass formers have a tendency to show local icosahedral chemical ordering. We argue that the frustration between this short-range bond ordering and the long-range crystalline ordering controls the fragility and the glass-forming ability of these liquids. Our model suggests that a system having a stronger tendency to show local icosahedral ordering should be less fragile and a better glass former. This scenario also naturally explains the close relationship among the degree of local icosahedral ordering in liquid, glass formability, and quasicrystal formability.
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