Thermal Stability of an Axial-Compressed Open-Tip Carbon Nanocone

Abstract:

This paper used molecular dynamics (MD) simulations to investigate thermal stability of an axial compressed open-tip carbon nanocone, which have an apex angle of 19.2°. To study the thermal stability, the carbon nanocone was first compressed axially up to the compression strain near its critical strain for buckling. Temperature of carbon nanocone was then increased gradually and the corresponding axial force in the carbon nanocone was monitored to examine the thermal stability of the carbon nanocone. It was found that the critical temperature for thermal instability grows with the decrease of the initial compressed strain. Comparing with the buckling mode of the carbon nanocone, the thermal instability mode displayed a swelling configuration rather than a deflective configuration of the buckling mode. The interesting finding would be helpful for applications of open-tip carbon nanocones.

• Periodical: Applied Mechanics and Materials (Volume 575)
• Pages: 227-230
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.575.227
• Online since: June 2014
• Authors: Ming Liang Liao*
• Keywords: Buckling Mode, Critical Strain, Critical Temperature, Molecular Dynamics Simulations, Thermal Instability Mode

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