Nano Archive

Pressure-induced phase transformation and structural resilience of single-wall carbon nanotube bundles

Sharma, Surinder M. and Karmakar, S and Sikka, S. K. and Teredesai, P. V. and Sood, A. K. and Govindaraj, Achutharao and Rao, C. N. R. (2001) Pressure-induced phase transformation and structural resilience of single-wall carbon nanotube bundles. Physical Review B, 63 (20). p. 205417.

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Official URL: http://link.aps.org/doi/10.1103/PhysRevB.63.205417

Abstract

We report here an in situ x-ray diffraction investigation of the structural changes in carbon single-wall nanotube bundles under quasihydrostatic pressures up to 13 GPa. In contrast with a recent study [Phys. Rev. Lett. 85, 1887 (2000)] our results show that the triangular lattice of the carbon nanotube bundles continues to persist up to ∼10 GPa. The lattice is seen to relax just before the phase transformation that is observed at ∼10 GPa. Further, our results display the reversibility of the two-dimensional lattice symmetry even after compression up to 13 GPa well beyond the 5 GPa value observed recently. These experimental results explicitly validate the predicted remarkable mechanical resilience of the nanotubes.

Item Type:Article
Subjects:Material Science > Functional and hybrid 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:4107
Deposited By:JNCASR
Deposited On:02 Feb 2009 15:45
Last Modified:08 Apr 2009 13:12

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