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The effect of anisotropic surface tension on the morphological stability of planar interface during directional solidification |
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| Authors: | Chen Ming-Wen Lan Man Yuan Lin Wang Yu-Yan Wang Zi-Dong Xu Jian-Jun |
| Affiliation: | School of Applied Sciences, University of Science and Technology Beijing, Beijing 100083, China; School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China; School of Mathematical Sciences, Nankai University, Tianjin 300071, China; Department of Mathematics and Statistics, McGill University, Montreal H3A 2K6, Canada |
| Abstract: | This paper considers the effect of the anisotropic surface tensionon the morphological stability of the planar interface duringdirectional solidification. When the expression exhibiting thefour-fold symmetry is included, the modified absolute stabilitycriterion is obtained by employing the multi-variable expansionmethod. The linear stability analysis reveals that for the giventemperature gradient, as the anisotropic surface tension parameterincreases, the stability zone tends to decrease. |
| Keywords: | directional solidification planar interface anisotropic surface tension morphologicalstability |
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