کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1810266 1525224 2013 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Surface energy and surface self-diffusion of Al calculated by embedded atom method
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم فیزیک ماده چگال
پیش نمایش صفحه اول مقاله
Surface energy and surface self-diffusion of Al calculated by embedded atom method
چکیده انگلیسی

In this work the surface energies of Al with different miller indices were calculated with an analytic long-range interaction embedded atom potential. The vacancy formation and migration energies of surface for Al (1 0 0), (1 1 0) and (1 1 1) planes were also calculated. The results show that the close-packed (1 1 1) surface has the lowest surface energy and the (1 1 0) surface has the largest surface energy. There is a significant difference among the vacancy formation energies between the different surfaces. The vacancy formation energy of the (1 1 1) surface is the highest, while that of the (1 1 0) surface is the lowest. This is consistent with the results of other theories. The Al self-diffusion by the vacancy mechanism and adatom mechanism on the surface is easier than that in the bulk.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physica B: Condensed Matter - Volume 422, 1 August 2013, Pages 51–55
نویسندگان
, , , , ,