Nano Archive

Collapse of double-walled carbon nanotube bundles under hydrostatic pressure

Maiti, Prabal K. and Gadagkar, Vikram and Lansac, Yves and Jagota, A. and Sood, A. K. (2006) Collapse of double-walled carbon nanotube bundles under hydrostatic pressure. PHYSICAL REVIEW B, 73 (8). 085402. ISSN 10980121

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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
Subjects:Physical Science > Nanophysics
Engineering > Nanotechnology applications in mechanical engineering
Analytical Science > Nanotechnology for sensing and actuating
Physical Science > Nano objects
Material Science > Nanostructured materials
Material Science > Nanochemistry
Divisions:Faculty of Engineering, Science and Mathematics > School of Physics
Faculty of Engineering, Science and Mathematics > School of Chemistry
ID Code:4384
Deposited By:JNCASR
Deposited On:02 Apr 2009 11:40
Last Modified:02 Apr 2009 11:40

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