Enhanced critical pressure for buckling of carbon nanotubes due to an inserted linear carbon chain
Författare och institution:
Zhili Hu (Institutionen för mikroteknologi och nanovetenskap, Bionanosystem)
Publicerad i:
Nanotechnology, 19 ( 30 ) s. 305703
Publikationstyp:
Artikel, refereegranskad vetenskaplig
Publiceringsår:
2012
Språk:
engelska
Sammanfattning (abstract):
Recent findings of linear carbon-atom chains (C-chains) inside carbon nanotubes have
stimulated considerable interest. In this work, molecular dynamics (MD) simulation and an
elastic string–elastic shell model is adopted to study radial pressure-induced buckling of
single-walled carbon nanotubes (SWCNT) filled with a C-chain. The continuum model predicts
that the C-chain increases critical buckling pressure considerably (about 40%–160%) for
SWCNTs of diameters ranging from 0.68 to 0.72 nm, in reasonable quantitative agreement with
the prediction of MD simulation. In particular, the MD simulation confirms that the originally
circular cross section of filled SWNTs becomes elliptical after buckling, as predicted by the
continuum model.
Ämne (baseras på Högskoleverkets indelning av forskningsämnen):
NATURVETENSKAP ->
Fysik
Fysik
Chalmers styrkeområden:
Nanovetenskap och nanoteknik
Postens nummer:
166243
Ingår i post nr:
Posten skapad:
2012-11-16 15:04