Pattern stability and trijunction motion in eutectic solidification

被引：30

作者：

Akamatsu, S

Plapp, M

Faivre, G

Karma, A

机构：

[1] Univ Denis Diderot & Pierre & Marie Curie, CNRS, UMR 7588, Phys Solides Grp, F-75251 Paris 05, France

[2] Ecole Polytech, CNRS, Phys Mat Condensee Lab, F-91128 Palaiseau, France

[3] Northeastern Univ, Dept Phys, Boston, MA 02115 USA

来源：

PHYSICAL REVIEW E | 2002年 / 66卷 / 03期

关键词：

D O I：

10.1103/PhysRevE.030501

中图分类号：

O35 [流体力学]; O53 [等离子体物理学];

学科分类号：

070204 ; 080103 ; 080704 ;

摘要：

We demonstrate by both experiments and phase-field simulations that lamellar eutectic growth can be stable for a wide range of spacings below the point of minimum undercooling at low velocity, contrary to what is predicted by existing stability analyses. This overstabilization can be explained by relaxing Cahn's assumption that lamellae grow locally normal to the eutectic interface.

引用

页数：4

共 19 条

[1] Traveling waves, two-phase fingers, and eutectic colonies in thin-sample directional solidification of a ternary eutectic alloy [J].