Atomistic calculation of size effects on elastic coefficients in nanometre-sized tungsten layers and wires

被引：82

作者：

Villain, P ^{[1
]}

Beauchamp, P ^{[1
]}

Badawi, KF ^{[1
]}

Goudeau, P ^{[1
]}

Renault, PO ^{[1
]}

机构：

[1] Univ Poitiers, CNRS, Met Phys Lab, UMR 6630, F-86962 Futuroscope, France

来源：

SCRIPTA MATERIALIA | 2004年 / 50卷 / 09期

关键词：

elastic behaviour; simulation; surface; thin films; nanostructure;

D O I：

10.1016/j.scriptamat.2004.01.033

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Equilibrium state and elastic coefficients of nanometre-sized single crystal tungsten layers and wires are investigated by atomistic simulations. The variations of the equilibrium distances as a function of the layer thickness or wire cross-section are mainly due to elastic effects of surface tension forces. A strong decrease of the Young's modulus is observed when the transverse dimensions are reduced below 2-3 nm. (C) 2004 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

引用

页码：1247 / 1251

页数：5

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