English, Article edition: SIZE-DEPENDENT ELASTIC PROPERTIES OF Ni NANOFILMS BY MOLECULAR DYNAMICS SIMULATION ZHENYU YANG; YA-PU ZHAO

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Bookmark: http://trove.nla.gov.au/version/83887
Physical Description
  • article
Language
  • English

Edition details

Title
  • SIZE-DEPENDENT ELASTIC PROPERTIES OF Ni NANOFILMS BY MOLECULAR DYNAMICS SIMULATION
Author
  • ZHENYU YANG
  • YA-PU ZHAO
Physical Description
  • article
Notes
  • Size-dependent elastic properties of Ni nanofilms are investigated by molecular dynamics (MD) simulations with embedded atom method (EAM). The surface effects are considered by calculating the surface relaxation, surface energy, and surface stress. The Young's modulus and yield stress are obtained as functions of thickness and crystallographic orientation. It is shown that the surface relaxation has important effects on the the elastic properties at nanoscale. When the surface relaxation is outward, the Young's modulus decreases with the film thickness decreasing, and vice versa. The results also show that the yield stresses of the films increase with the films becoming thinner. With the thickness of the nanofilms decreasing, the surface effects on the elastic properties become dominant.
  • Molecular dynamics simulation, size-dependent elastic properties, nanofilms, surface relaxation, Young's modulus, yield stress
  • RePEc:wsi:srlxxx:v:14:y:2007:i:04:p:661-665
Language
  • English
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