Stability of C60-peapods under hydrostatic pressure
| Autor: | Reza Naghdabadi, Ali Najafi Sohi |
|---|---|
| Rok vydání: | 2007 |
| Předmět: |
Nanotube
Materials science Fullerene Polymers and Plastics Continuum mechanics Hydrostatic pressure Metals and Alloys Nanotechnology Carbon nanotube Instability Electronic Optical and Magnetic Materials law.invention symbols.namesake Sphere packing law Chemical physics Physics::Atomic and Molecular Clusters Ceramics and Composites symbols van der Waals force |
| Zdroj: | Acta Materialia. 55:5483-5488 |
| ISSN: | 1359-6454 |
| Popis: | The stability of single-walled carbon nanopeapods under hydrostatic pressure is investigated using a continuum-based elastic shell model. The model incorporates nonbonded van der Waals interactions between the nested fullerenes and the host carbon nanotube. By deriving an explicit equation, it is shown that the critical hydrostatic pressure for the onset of structural instability of a completely packed C 60 @(10,10) nanopeapod is ∼1.11 GPa, while for the case of the pristine host (10,10) nanotube it is ∼1.84 GPa. Thus, it is concluded that the fullerene encapsulation weakens the host nanotube under hydrostatic pressure. In addition, it is quantitatively shown that any decrease in packing density of fullerenes lessens the weakening effect on the total stability of the nanopeapod. |
| Databáze: | OpenAIRE |
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