Dendritic array growth in the systems NH4Cl-H2O and [CH2CN]2-H2O:: steady state measurements and analysis
Dendritic array growth in the systems NH4Cl-H2O and [CH2CN]2-H2O:: steady state measurements and analysis
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DOI：
10.1016/s0022-0248(01)01679-7
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发表时间：
2002-02-01
影响因子：
1.8
通讯作者：
Hellawell, A
中科院分区：
文献类型：
--
作者：
Hansen, G;Liu, S;Hellawell, A
在氯化铵-水和丁二腈-水透明材料体系中，在稳态生长条件下测量了枝晶阵列的尺寸。的测量作为生长速率，V，和温度梯度，G的函数，并与亨特和陆目前的分析结果进行比较。对于[CH_2CN]（2）-H_2 O体系，计算结果与理论分析吻合较好，而对于固体体积分数很小的NH_4Cl-H_2 O体系，计算结果与理论分析不太吻合。这些数据作为参考基础，为随后的检查下的瞬态条件下，减速阵列的行为。(C)2002 Elsevier Science B. V.保留所有权利。
Dendrite array dimensions have been measured under steady state growth conditions in the transparent material systems, ammonium chloride-water and succinonitrile-water. The measurements were made as functions of growth rate, V, and temperature gradient, G, and the results compared with the current analysis of Hunt and Lu. Close agreement with the analysis was found for the system [CH2CN](2)-H2O, but less so for the system NH4Cl-H2O in which the volume fraction of solid is very small. The data are presented as a reference base for subsequent examination of array behavior under transient conditions following deceleration. (C) 2002 Elsevier Science B.V. All rights reserved.