The unexpected stability of multiwall nanotubes under high pressure and shear deformation

Journal Article · Mon Aug 22 04:00:00 EDT 2016 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.4961618· OSTI ID:22590480

Pashkin, E. Y.; Pankov, A. M.; Kulnitskiy, B. A.; Mordkovich, V. Z. ^[1]; Perezhogin, I. A. ^[1]; Karaeva, A. R. ^[1]; Popov, M. Y.; Sorokin, P. B.; Blank, V. D. ^[1]

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1. Technological Institute for Superhard and Novel Carbon Materials, 7a Centralnaya Street, Troitsk, Moscow 142190 (Russian Federation)

The behavior of multiwall carbon nanotubes under a high pressure (up to 55 GPa) combined with shear deformation was studied by experimental and theoretical methods. The unexpectedly high stability of the nanotubes' structure under high stresses was observed. After the pressure was released, we observed that the nanotubes had restored their shapes. Atomistic simulations show that the hydrostatic and shear stresses affect the nanotubes' structure in a different way. It was found that the shear stress load in the multiwall nanotubes' outer walls can induce their connection and formation of an amorphized sp{sup 3}-hybridized region but internal core keeps the tubular structure.

• OSTI ID: 22590480
• Journal Information: Applied Physics Letters, Journal Name: Applied Physics Letters Journal Issue: 8 Vol. 109; ISSN APPLAB; ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
CARBON NANOTUBES
DEFORMATION
PRESSURE RANGE GIGA PA
PRESSURE RANGE MEGA PA 10-100
SHAPE
SHEAR
SIMULATION
STABILITY
STRESSES