Gadagkar, Vikram ; Maiti, Prabal K. ; Lansac, Yves ; Jagota, A. ; Sood, A. K. (2006) Collapse of double-walled carbon nanotube bundles under hydrostatic pressure Physical Review B: Condensed Matter and Materials Physics, 73 (8). 085402_1-085402_6. ISSN 1098-0121
![]()
|
PDF
- Author Version
315kB |
Official URL: http://prb.aps.org/abstract/PRB/v73/i8/e085402
Related URL: http://dx.doi.org/10.1103/PhysRevB.73.085402
Abstract
We use classical molecular dynamics simulations to study the collapse of single (SWNT) and double-walled (DWNT) carbon nanotube bundles under hydrostatic pressure. The collapse pressure (pc) varies as 1/R3, where R is the SWNT radius or the DWNT effective radius. The bundles show ~30% hysteresis and the hexagonally close packed lattice is completely restored on decompression. The pc of DWNT is found to be close to the sum of its values for the inner and the outer tubes considered separately as SWNT, demonstrating that the inner tube supports the outer tube and that the effective bending stiffness of DWNT, DDWNT~2DSWNT. We use an elastica formulation to derive the scaling and the collapse behavior of DWNT and multiwalled carbon nanotubes.
Item Type: | Article |
---|---|
Source: | Copyright of this article belongs to American Physical Society. |
ID Code: | 50244 |
Deposited On: | 22 Jul 2011 13:56 |
Last Modified: | 18 May 2016 04:36 |
Repository Staff Only: item control page