کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5370280 1388479 2006 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
The energy and structure of (0 0 1) twist grain boundary in noble metals
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی تئوریک و عملی
پیش نمایش صفحه اول مقاله
The energy and structure of (0 0 1) twist grain boundary in noble metals
چکیده انگلیسی

The relaxed energy and structure of (0 0 1) twist grain boundary (GB) in noble metals Au, Ag and Cu are simulated by the MAEAM. In-boundary translation between two adjacent grains results in a periodic energy variation and the period is a square with the side length LΣ/Σ. The lowest energy appears when the two grains are translated relatively to either corner or center of the periodic square. The relaxed GB energy increases smoothly for low-angle boundaries and levels off for larger-angle boundaries except a cusp appeared at θ = 36.87° (Σ = 5). After relaxation, the symmetry of the GB structure is not changed but the displacement of the atoms parallel to the GB plane decreases with increasing the distance of the atoms from the GB plane.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Surface Science - Volume 253, Issue 2, 15 November 2006, Pages 854-858
نویسندگان
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