Paper Title:
Molecular Dynamics Simulations of Nanoparticle-Surface Collisions in Crystalline Silicon
  Abstract

We present a microscopic description for the impacting process of silicon nanospheres onto a silicon substrate. In spite of the relatively low energy regime considered (up to 1 eV/atom), the impacting process exhibits a rich behavior: A rigid Hertzian model is valid for speeds below 500 m/s, while a quasi-ellipsoidal deformation regime emerges at larger speeds. Furthermore, for speeds up to 1000 m/s the particle undergoes a soft landing and creates a long-lived coherent surface phonon. Higher speeds lead to a rapid attenuation of the coherent phonon due to a partial diamond cubic to-tin phase transformation occurring in the particle.

  Info
Periodical
Edited by
Guest Editor: N. Ali
Pages
31-39
DOI
10.4028/www.scientific.net/JNanoR.1.31
Citation
P. Valentini, T. Dumitrica, "Molecular Dynamics Simulations of Nanoparticle-Surface Collisions in Crystalline Silicon ", Journal of Nano Research, Vol. 1, pp. 31-39, 2008
Online since
January 2008
Export
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Jian Cheng Fang, Wen Ji Xu, Zhi Yu Zhao, L. Wang
Abstract:There are many technical parameters influencing on the coating quality in plasma spray forming which has become an important technology in...
2823
Authors: Sang Yeob Oh, Hyung Seop Shin
Abstract:The damage behaviors induced in a SiC by a spherical particle impact having a different material and size were investigated. Especially, the...
1321
Authors: Frank Gaertner, Tobias Schmidt, Heinrich Kreye
Abstract:Cold spraying is a fairly new coating technique, which within the last decade attracted serious attention of research groups and spray...
433
Authors: Fu Ping Qian, Xian Kun Yu
Chapter 6: Environmental Engineering
Abstract:The grid “freezing” method in computational fluid dynamics (CFD) was used to deal with the moving boundary in this study, which can make the...
1767
Authors: Chao Sun, Rujuan Shen, Min Song, Yong Du
Chapter 1: Composites
Abstract:The effects of SiC particle size, volume fraction and tensile strain on the deformation behaviors of SiC particle reinforced Al matrix...
3