Influence of surface atomic structure on the mechanical response of aluminum nanospheres under compression

详细信息    查看全文

• 作者：S. Bel Haj Salah ; C. Gerard ; L. Pizzagalli ; ^{laurent.pizzagalli@univ-poitiers.fr}
• 关键词：Nanoparticle ; Plasticity ; Dislocations ; Molecular dynamics ; Aluminum
• 刊名：Computational Materials Science
• 出版年：2017
• 出版时间：March 2017
• 年：2017
• 卷：129
• 期：Complete
• 页码：273-278
• 全文大小：1442 K
• 卷排序：129

文摘

Compressed Al nanospheres plastically deform by dislocation nucleation. These dislocations are Shockley partials forming at surface contact edges. The contact surface structure controls the plasticity, not the nanoparticle size. Models available in literature are not applicable.