Solidification in a channel

Details Solidification in a channel Solidification in a channel

2001-01-02

arxiv.org/abs/cond-mat/0101016v1

Physics

Condensed Matter

Materials Science

4 pages, 4 figures

Scientific paper

We simulate solidification in a narrow channel through the use of a phase-field model with an adaptive grid. In different regimes, we find that the solid can grow in fingerlike steady-state shapes, or become unstable, exhibiting unsteady growth. At low melt undercoolings, we find good agreement between our results, theoretical predictions, and experiment. For high undercoolings, we report evidence for a new stable steady-state finger shape which exists in experimentally accessible ranges for typical materials.

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