An analytical lattice model study of fcc nanowires

I. Ling Chang, Jen Chin Huang

研究成果: Article

4 引文 (Scopus)

摘要

Size-dependent elastic moduli are investigated theoretically for a face-center-cubic single-crystalline nanowire. A three-dimensional lattice model is constructed only considering the interactions between the nearest and second nearest atoms and the interactions are represented as harmonic springs. Unlike the classical continuum theory, this lattice model directly takes the discrete nature in the cross sectional directions into account. The constitutive relation of the nanowire is then derived by using the energy approach and the analytical expressions of the elastic moduli of nanowires, including axial, transverse Young's modulus and Poisson's ratio, are obtained. The model is validated through comparison with molecular simulation data from the literature. Once validated, the model is used to study the size-dependent elastic moduli. It is shown that the (100) nanowires are always softer than its bulk counterpart in both axial and transverse directions.

原文English
頁(從 - 到)341-347
頁數7
期刊Journal of Computational and Theoretical Nanoscience
5
發行號3
DOIs
出版狀態Published - 2008 三月

指紋

Nanowires
Lattice Model
Analytical Model
modulus of elasticity
Elastic Modulus
nanowires
Elastic moduli
Transverse
Lattice theory
Molecular Simulation
Dependent
Poisson's Ratio
Young's Modulus
Constitutive Relations
data simulation
Poisson ratio
Interaction
Crystal lattices
Continuum
Harmonic

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics
  • Computational Mathematics
  • Electrical and Electronic Engineering

引用此文

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An analytical lattice model study of fcc nanowires. / Chang, I. Ling; Huang, Jen Chin.

於: Journal of Computational and Theoretical Nanoscience, 卷 5, 編號 3, 03.2008, p. 341-347.

研究成果: Article

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