کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1483700 | 1510545 | 2006 | 7 صفحه PDF | دانلود رایگان |
An overview of recent experimental and theoretical investigations on undercooled liquids is given, indicating developing short-range order with undercooling. Our in situ synchrotron X-ray diffraction studies of electrostatically levitated droplets of elemental Ti, Zr, and Ni liquids and coordinated undercooling and structural studies of a Ti–Zr–Ni liquid that forms an icosahedral quasicrystal are discussed in the context of these investigations. Icosahedral order is demonstrated to be a dominant component to the structures of all undercooled liquids studied, although it becomes significantly distorted with an increasing importance of the d-band bonding character. The liquid short-range order couples with the nucleation barrier, as predicted by Frank over a half-century ago.
Journal: Journal of Non-Crystalline Solids - Volume 352, Issues 50–51, 1 December 2006, Pages 5318–5324