Dynamics of faceted grain boundary grooves

被引：18

作者：

Dash, JG ^{[1
]}

Hodgkin, VA

Wettlaufer, JS

机构：

[1] Univ Washington, Dept Phys, Seattle, WA 98195 USA

[2] Univ Washington, Appl Phys Lab, Seattle, WA 98195 USA

来源：

JOURNAL OF STATISTICAL PHYSICS | 1999年 / 95卷 / 5-6期

关键词：

nucleation; surface free energy; facets; grain boundaries; crystal growth;

D O I：

10.1023/A:1004579223189

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The dynamics of dislocation-free crystal facets is examined in the context of grain boundary grooves at the junction between two crystallites of a solid and the liquid phase. The geometry and thermal conditions of grain boundary grooves allow a detailed analysis of facet morphology during solidification in terms of the nucleation and spreading rates of elementary crystal planes. Observations on the freezing of water in a two-dimensional cell reveal several dynamical features which are treated by the theory. Additional observations provide indications for the stiffness and premelting of grain boundaries.

引用

页码：1311 / 1322

页数：12

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