Abstract
High-energy x-ray diffraction measurements of undercooled, electrostatically levitated Ni50Zr50 liquid droplets were performed. The observed solidification pathway proceeded through the nucleation and growth of the metastable B2 phase, which persisted for several seconds before the rapid appearance of the stable B33 phase. This sequence is shown to be consistent with predictions from classical nucleation theory using data obtained from molecular dynamics (MD) simulations. A plausible mechanism for the B2-B33 transformation is proposed and investigated through further MD simulations.
Original language | English |
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Article number | 085004 |
Journal | Journal of Physics Condensed Matter |
Volume | 27 |
Issue number | 8 |
DOIs | |
State | Published - Mar 4 2015 |
Externally published | Yes |
Keywords
- molecular dynamics simulation
- solidification
- x-ray diffraction