A comparative study on migration of a planar interface during solidification of non-dilute alloys

被引：27

作者：

Li, Shu ^{[1
]}

Zhang, Jiong ^{[1
]}

Wu, Ping ^{[1
]}

机构：

[1] Tianjin Univ, Tianjin Key Lab Low Dimens Mat Phys & Preparing T, Dept Appl Phys, Inst Adv Mat Phys,Sch Sci, Tianjin 300072, Peoples R China

来源：

JOURNAL OF CRYSTAL GROWTH | 2010年 / 312卷 / 07期

基金：

中国国家自然科学基金;

关键词：

Interface; Kinetics; Solidification; Thermodynamics; Non-dilute alloy; SOLUTE-DRAG; NONEQUILIBRIUM CONDITIONS; RAPID SOLIDIFICATION; DENDRITE GROWTH; MODEL; BOUNDARIES; DIFFUSION;

D O I：

10.1016/j.jcrysgro.2009.12.070

中图分类号：

O7 [晶体学];

学科分类号：

0702 ; 070205 ; 0703 ; 080501 ;

摘要：

We extend Galenko's nonequilibrium kinetic model of planar interface migration during solidification to non-dilute solution with non-straight liquidus and solidus curves. Using this more complex thermodynamic model for silicon-arsenic we show that the model with significant solute drag is consistent with the available experimental data for Si-9at%As alloy. Comparison with the typical kinetic models shows that the present model provides a better description of the data and the linear phase boundary assumption may lead to a relatively large deviation from reality. (C) 2010 Elsevier B.V. All rights reserved.

引用

页码：982 / 988

页数：7

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