Published April 24, 2000
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Journal Article
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Repeated crystallization in undercooled Zr41Ti14Cu12Ni10Be23 liquids
- Creators
- Schroers, Jan
- Johnson, William L.
- Busch, Ralf
Chicago
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Abstract
Isothermal crystallization studies are performed on Zr41Ti14Cu12Ni10Be23 melts. Undercooling experiments are carried out repeatedly at 907, 860, and 750 K. The scattering of the time to reach the onset of crystallization is investigated. Results from experiments performed at 907 K show a large scatter of the onset time of crystallization. For the experiments carried out at 860 and 750 K, scattering of the onset time is two orders of magnitude smaller. These results indicate that, at high temperatures, the crystallization is governed by the time scale of the statistical nucleation events. At low temperatures, the crystallization is controlled by diffusion, resulting in a well-defined onset time for crystallization.
Additional Information
©2000 American Institute of Physics. (Received 15 December 1999; accepted 25 February 2000) This work was supported by the National Aeronautics and Space Administration (Grant No. NCC8-119) and the Department of Energy (Grant No. DEFG-03086ER45242). The authors thank Pierre Desré for fruitful discussion.Files
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- CaltechAUTHORS:SCHRapl00a
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