کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1585169 | 1514909 | 2006 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
The microscopic mechanism of silicon precipitation in Al/Si system
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
دانش مواد (عمومی)
پیش نمایش صفحه اول مقاله

چکیده انگلیسی
A Homo-Heterogeneous Mechanism (HHM) for the precipitation of silicon atoms in aluminum is proposed. The main point of HHM is that the formation of critical nucleus consists of two steps. At the first step the pre-critical nucleus is formed. It plays a role of a preferable site for the further hetero-nucleation and then for the growth of Si precipitates on these nuclei. The reported results are based on ab initio calculations of total energy for equilibrium configurations of silicon clusters embedded into aluminum lattice. HHM explains the results of experimental studies of silicon precipitation in quenched Si–Al alloy obtained in this work and by other authors.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Science and Engineering: A - Volumes 435–436, 5 November 2006, Pages 556–563
Journal: Materials Science and Engineering: A - Volumes 435–436, 5 November 2006, Pages 556–563
نویسندگان
V.Y. Zenou, A. Kiv, D. Fuks, V. Ezerski, N. Moiseenko,