Numerical Simulation of the Compression Behavior of Nanometer-Sized Ag Particles

被引：2

作者：

Delogu, Francesco ^{[1
]}

机构：

[1] Univ Cagliari, Dipartimento Ingn Chim & Mat, I-09123 Cagliari, Italy

来源：

JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY | 2009年 / 9卷 / 05期

关键词：

Mechanical Properties; Nanometer-Sized Systems; Numerical Simulations; TRANSITION; PRESSURE; CLUSTERS; GAS;

D O I：

10.1166/jnn.2009.018

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The mechanical response to hydrostatic compression of Ag particles in the size range between 1 and 7 nm has been investigated by molecular dynamics simulations. The solid particles were prepared starting from molten droplets cooled at realistic rates and embedded in a pressure-transmitting liquid medium. It is shown that the particle bulk modulus undergoes a size-dependent increase related to the size-dependent variation of the Einstein temperature. This correlates in turn with the fraction of atoms with compact coordination and connects the stiffening of Ag particles with their structure.

引用

页码：2944 / 2949

页数：6

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