Growth behavior of NH4Cl-H2O mixtures

被引：13

作者：

Blackmore, KA

Beatty, KM

Hui, MJ

Jackson, KA

机构：

[1] Dept. of Mat. Sci. and Engineering, University of Arizona, Tucson

来源：

JOURNAL OF CRYSTAL GROWTH | 1997年 / 174卷 / 1-4期

关键词：

ammonium chloride; crystal growth; discontinuity; dendrites;

D O I：

10.1016/S0022-0248(96)01063-9

中图分类号：

O7 [晶体学];

学科分类号：

0702 ; 070205 ; 0703 ; 080501 ;

摘要：

A discontinuity in the growth velocity, as a function of undercooling, was reported for tin alloys by Nikonova and Temkin and also for boron doped nickel by Eckler et al. A similar discontinuity in the growth rate as a function of undercooling of ammonium-chloride-water solutions is reported. While the dendritic growth behavior of several alloys has been successfully modeled, the observed discontinuity in the growth rate of ammonium chloride crystals cannot be fit using the same equations. Since the samples used in this work have large concentrations of the second component, water, the observed discontinuity is attributed to some other mechanism.

引用

页码：76 / 81

页数：6

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