Micromechanism of Thermally Induced Breaking of One-Dimensional Nanocrystals

Abstract:

Thermo-fluctuation model of failure of one-dimensional nanocrystals is offered for wide range of change in temperature, time and applied loading. Unlike the classic models, which are based on the theory of reaction rates, in present model the failure initiation is related to the instability of atomic interaction. It enables to account for the effect of both temperature and applied loading on the lifetime of crystal within a framework of the unified approach. The model proposed was employed to predict the temperature dependence of both strength and lifetime of carbyne nanoconductor (CNC). Obtained temperature dependences agree well with the MD-simulation findings. Within the framework of the above model, CNC lifetime was estimated. It is exhibited that for temperatures not higher than 600K, CNC have a long-lasting lifetime, so, they can be used in nanodevices.

• Periodical: Solid State Phenomena (Volume 258)
• Pages: 286-289
• DOI: https://doi.org/10.4028/www.scientific.net/SSP.258.286
• Online since: December 2016
• Authors: Sergiy Kotrechko*, Nataliya Stetsenko, Eugene Kolyvoshko
• Keywords: Atomic Bonds, Carbyne, Graphene, Lifetime

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