Thermal gradient induced sidebranching in directional solidification

被引：0
|
作者：
M. Georgelin
A. Pocheau
机构：
[1] IRPHE(UMR 6594 CNRS),Faculté de Saint
[2] Universités Aix-Marseille I & II,Jérôme
[3] S.252,undefined
来源：
The European Physical Journal B - Condensed Matter and Complex Systems | 1998年 / 4卷
关键词：
PACS. 81.30.Fb Solidification; 68.70.+w Whiskers and dendrites (growth, structure, and nonelectronic properties; 47.20.Hw Morphological instability; phase changes;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The effect of thermal gradient on sidebranching is studied experimentally in directional solidification of impure succinonitrile. An experimental procedure capable of changing thermal gradient while keeping pulling velocity and cell-spacing constant is applied. It enables us to directly observe the effect on sidebranching of the sole change of thermal gradient. It is found that increase of thermal gradient enhances sidebranch amplitude and reduces sidebranching onset.
引用
收藏
页码：169 / 174
页数：5
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