کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1561130 1513935 2013 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Effect of mold geometry on nanoformed aluminum films investigated using molecular dynamics simulations
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مکانیک محاسباتی
پیش نمایش صفحه اول مقاله
Effect of mold geometry on nanoformed aluminum films investigated using molecular dynamics simulations
چکیده انگلیسی
The nanoimprint lithography (NIL) process of Al films is studied using molecular dynamics simulations based on the many-body tight-binding potential. The effects of the mold geometry, temperature, and imprint velocity are evaluated in terms of atomic trajectories, potential energy, slip vector, and the radial distribution function. The simulation results show that at the initial imprint, dislocations nucleate and propagate on the (1 1 1) close-packed plane (slip plane). Slip planes with different orientations gradually appear with increasing mold displacement due to the dramatic deformation. A discontinuous geometry of the mold enlarges the effect of adhesion, which leads to a filling failure. The potential energy of Al film increases with imprint temperature, and its release is increasingly delayed with increasing imprint velocity. A better structure order is obtained at lower imprint temperatures.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Computational Materials Science - Volume 74, June 2013, Pages 17-22
نویسندگان
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