Journal
APPLIED SURFACE SCIENCE
Volume 356, Issue -, Pages 221-225Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.apsusc.2015.07.210
Keywords
Graphe nanoribbons; Single walled carbon nanotubes; Mechanical property; Molecular dynamics simulation
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Funding
- Ministry of Science and Technology of Taiwan [MOST 103-2221-E-151-001-MY3, MOST 103-2221-E-151-007-MY3, MOST 103-2221-E-168-006]
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We perform molecular dynamics (MD) simulations of nanoindentation to study the mechanical properties of a graphene nanoribbon encapsulated in a single-walled carbon nanotube (GNR@SWCNT). The effects of different temperatures, nanotube diameters, and slenderness ratios on the properties of the GNR@SWCNT are examined. Results show that the maximum load and contact stiffness increase with an increase of temperature. But the adhesion force and ratio of springback are low at a high temperature of 1200 K. The maximum load and contact stiffness are high for the nanoindentation of the GNR@SWCNT with a low slenderness ratio. In addition, the GNR@SWCNT has a more than 15% rate of springback exhibiting a superelastic nanocomposite behavior. The results are useful for engineering applications of nanocomposites composed of carbon nanotubes and graphene materials. (C) 2015 Elsevier B.V. All rights reserved.
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