Complex banded structures in directional solidification processes

A combination of theory and numerical simulation is used to investigate impurity superstructures that form in rapid directional solidification (RDS) processes in the presence of a temperature gradient and a pulling velocity with an oscillatory component. Based on a capillary wave model, we show that...

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Bibliographic Details
Published in:Journal of physics. Condensed matter 2016-01, Vol.28 (3), p.035001-035001
Main Authors: Korzhenevskii, A L, Rozas, R E, Horbach, J
Format: Article
Language:English
Subjects:
Banded structure
Capillary waves
composition
Computer simulation
Condensed matter
Directional solidification
interface and surface thermodynamics
Mathematical models
segregation
defects and impurities
solidification
Superstructures
Temperature gradient
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Summary:A combination of theory and numerical simulation is used to investigate impurity superstructures that form in rapid directional solidification (RDS) processes in the presence of a temperature gradient and a pulling velocity with an oscillatory component. Based on a capillary wave model, we show that the RDS processes are associated with a rich morphology of banded structures, including frequency locking and the transition to chaos.
ISSN:0953-8984
1361-648X
DOI:10.1088/0953-8984/28/3/035001