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Study of Carbon Nanotubes Under High Pressure

  • J. Tang (a1), L.C. Qin (a2), A. Matsushita (a1), T. Kikegawa (a3), M. Yudasaka (a2), S. Bandow (a4) and S. Iijima (a2) (a4)...


The elastic behavior and structural changes of single-walled carbon nanotubes under hydrostatic pressure produced by a gasketed diamond anvil cell has been studied using in situ synchrotron x-ray diffraction. The compaction of the raft-like bundles of single-walled carbon nanotube showed a linear behavior up to 1.5 GPa pressure and the volume compressibility deduced from the experimental data is 0.024 GPa−1. The elastic deformation is attributed to the combination of a reduction in the inter-tubular distance and the polygonization of the otherwise circular nanotube sections.



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