Melt layer solidification of fatty acids in a rectangular cell
Melt layer solidification of fatty acids in a rectangular cell
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矩形池中脂肪酸的熔体层固化
DOI：
10.1063/1.480702
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发表时间：
2000
期刊：
影响因子：
--
通讯作者：
K. Maeda
中科院分区：
文献类型：
--
作者：
K. Fukui;K. Maeda
对肉豆蔻酸和棕榈酸二元熔体生长的固体层中杂质的掺入进行了实验研究。二元熔体形成简单的共晶相图。为了验证作者提出的新的界面溶质分布理论，对熔体凝固过程进行了直接数值模拟。太棒了。109,7468(1998)]。固体层纯度或杂质浓度分布的理论预测与实验测量符合得很好。固体层内的纯度分布基本上由熔体的流动结构控制，而熔体的流动结构是固体层表面附近热量和质量传输现象的主要原因。
Experiments have been performed on the impurity incorporation in the solid layer grown from a binary melt of myristic acid and palmitic acid using a rectangular cell with well-controlled temperature. The binary melt forms a simple eutectic phase diagram. Direct numerical simulations of melt solidification were carried out in order to validate the new theory of interfacial solute distribution proposed by the present authors [J. Chem. Phys. 109, 7468 (1998)]. The theoretical predictions of purity or impurity concentration profile in the solid layer agreed well with the experimental measurements. The purity profile inside the solid layer was found to be basically controlled by the flow structure of melt that essentially contributed to the transport phenomena of heat and mass near the solid layer surface.