کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5463674 | 1517202 | 2017 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Structural ordering at solid-liquid interfaces in Al-Sm system: A molecular-dynamics study
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فناوری نانو (نانو تکنولوژی)
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Structural ordering at solid-liquid interfaces in Al-Sm system: A molecular-dynamics study Structural ordering at solid-liquid interfaces in Al-Sm system: A molecular-dynamics study](/preview/png/5463674.png)
چکیده انگلیسی
The structural ordering at solid-liquid interfaces far from equilibrium is studied with molecular dynamics simulations for the Al-Sm system. Using the van-Hove self-correlation function as the criterion to identify attachment/detachment events that occur at the interface, we are able to determine the time-dependent interface position, and characterize the detailed interfacial structure ordering surrounding the attached atoms. For the interface between an undercooled Al90Sm10 liquid and a metastable cubic structure, the solid induces the crystalline order of the cubic phase in the liquid layers, promoting the continuous growth of the crystal phase. When the same liquid is put in contact with f.c.c. Al, Sm from the liquid can still attach to the solid interface despite its insolubility in the Al lattice. Non-f.c.c. order is revealed surrounding the attached Sm atoms. We show that the local structure ordering at interface is highly correlated to solid packing and liquid ordering.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Letters - Volume 186, 1 January 2017, Pages 26-29
Journal: Materials Letters - Volume 186, 1 January 2017, Pages 26-29
نویسندگان
Yang Sun, Feng Zhang, Zhuo Ye, Zejun Ding, Mikhail I. Mendelev, Matthew J. Kramer, Cai-Zhuang Wang, Kai-Ming Ho,