About this Abstract |
Meeting |
2023 TMS Annual Meeting & Exhibition
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Symposium
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Frontiers in Solidification: An MPMD Symposium Honoring Jonathan A. Dantzig
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Presentation Title |
Bridging between Glass-Crystal Growth in Organics and Rapid Solidification Effects in Metals |
Author(s) |
A. Lindsay Greer, Yurii P. Ivanov, Dmitri V. Louzguine-Luzgin |
On-Site Speaker (Planned) |
A. Lindsay Greer |
Abstract Scope |
Crystallization of a Zr-based bulk metallic glass with a mixture of fast and slow (i.e. smaller and larger) atomic species shows a complex crystal growth mode, combining ‘diffusionless’ growth and solute partitioning. It also shows phenomena analogous to solute trapping and disorder trapping in the rapid solidification of metals. For the first time, the transient disordered layer postulated in rapid solidification has been imaged. Parallels are drawn with the glass-crystal (‘GC’) growth mode in organics. In that mode, first observed by Greet & Turnbull [1], crystal growth in the glass is orders of magnitude faster than if limited by diffusional molecular rearrangement at the crystal/glass interface.
[1] R. J. Greet, & D. Turnbull, J. Chem. Phys. 46 (1967) 1243‒1251. |
Proceedings Inclusion? |
Planned: |
Keywords |
Solidification, Phase Transformations, Other |