تقرير
Weakly faceted cellular patterns versus growth-induced plastic deformation in thin-sample directional solidification of monoclinic biphenyl
| العنوان: | Weakly faceted cellular patterns versus growth-induced plastic deformation in thin-sample directional solidification of monoclinic biphenyl |
|---|---|
| المؤلفون: | Borzsonyi, Tamas, Akamatsu, Silvere, Faivre, Gabriel |
| سنة النشر: | 2009 |
| المجموعة: | Condensed Matter |
| مصطلحات موضوعية: | Condensed Matter - Soft Condensed Matter |
| الوصف: | We present an experimental study of thin-sample directional solidification (T-DS) in impure biphenyl. The plate-like growth shape of the monoclinic biphenyl crystals includes two low-mobility (001) facets and four high-mobility {110} facets. Upon T-DS, biphenyl plates oriented with (001) facets parallel to the sample plane can exhibit either a strong growth-induced plastic deformation (GID), or deformation-free weakly faceted (WF) growth patterns. We determine the respective conditions of appearance of these phenomena. GID is shown to be a long-range thermal-stress effect, which disappears when the growth front has a cellular structure. An early triggering of the cellular instability allowed us to avoid GID and study the dynamics of WF patterns as a function of the orientation of the crystal. Comment: 11 pages, 24 figures, Phys. Rev. E, in Press |
| نوع الوثيقة: | Working Paper |
| URL الوصول: | http://arxiv.org/abs/0911.1233 |
| رقم الأكسشن: | edsarx.0911.1233 |
| قاعدة البيانات: | arXiv |
| الوصف غير متاح. |