کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
8039171 1518598 2018 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
A molecular dynamics study of helium bombardments on tungsten nanoparticles
ترجمه فارسی عنوان
مطالعه دینامیک مولکولی بمباران های هلیوم بر روی نانوذرات تنگستن
کلمات کلیدی
شبیه سازی دینامیک مولکولی، نانوذرات تنگستن، هلیم، بمباران،
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سطوح، پوشش‌ها و فیلم‌ها
چکیده انگلیسی
Molecular dynamics simulations were conducted to study the bombardment process of a single helium atom on a tungsten nanoparticle. Helium atoms ranging from 50 eV to 50 keV were injected into tungsten nanoparticles with a diameter in the range of 2-12 nm. The retention and reflection of projectiles and sputtering of nanoparticles were calculated at various times. The results were found to be relative to the nanoparticle size and projectile energy. The projectile energy of 100 eV contributes to the largest retention of helium atoms in tungsten nanoparticles. The most obvious difference in reflection exists in the range of 3-10 keV. Around 66% of sputtering atoms is in forward direction for projectiles with incident energy higher than 10 keV. Moreover, the axial direction of the nanoparticles was demonstrated to influence the bombardment to some degree.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms - Volume 425, 15 June 2018, Pages 43-49
نویسندگان
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