کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9789526 | 1512911 | 2005 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Elastic and plastic deformations of nickel nanowires under uniaxial compression
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
مواد الکترونیکی، نوری و مغناطیسی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Using atomistic molecular dynamics simulation with a Sutton-Chen many body potential, we studied the structural evolution and deformation mechanisms of nickel nanowires under homogeneous uniaxial compressions. Nickel nanowires with helical multi-shell structure and fcc-like crystalline structures have been considered. Elastic and plastic behaviors of nickel nanowires under compression were observed and their elastic limits were determined. Our simulations show that the nickel nanowires with helical multi-shell structure have greater yield strength than that of macroscopic solid. Above elastic limit, the plastic deformation of the nanowires shows behavior that is associated with superplasticity. The final atomic structures for the two kinds of nanowires are resemblant crystalline-like.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physica E: Low-dimensional Systems and Nanostructures - Volume 30, Issues 1â2, December 2005, Pages 45-50
Journal: Physica E: Low-dimensional Systems and Nanostructures - Volume 30, Issues 1â2, December 2005, Pages 45-50
نویسندگان
Baolin Wang, Daning Shi, Jianming Jia, Guanghou Wang, Xiaoshuang Chen, Jijun Zhao,