Journal ArticleDOI
Exceptionally high Young's modulus observed for individual carbon nanotubes
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TLDR
In this article, the amplitude of the intrinsic thermal vibrations of isolated carbon nanotubes was measured in the transmission electron microscopy (TEM) and it was shown that they have exceptionally high Young's moduli, in the terapascal (TPa) range.Abstract:
CARBON nanotubes are predicted to have interesting mechanical properties—in particular, high stiffness and axial strength—as a result of their seamless cylindrical graphitic structure1–5. Their mechanical properties have so far eluded direct measurement, however, because of the very small dimensions of nanotubes. Here we estimate the Young's modulus of isolated nanotubes by measuring, in the transmission electron microscope, the amplitude of their intrinsic thermal vibrations. We find that carbon nanotubes have exceptionally high Young's moduli, in the terapascal (TPa) range. Their high stiffness, coupled with their low density, implies that nanotubes might be useful as nanoscale fibres in strong, lightweight composite materials.read more
Citations
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Journal ArticleDOI
Fluctuating nanomechanical system in a high finesse optical microcavity.
Ivan Favero,Sebastian Stapfner,David Hunger,Philipp Paulitschke,Jakob Reichel,Heribert Lorenz,Eva M. Weig,Khaled Karrai +7 more
TL;DR: In this paper, a single nanorod consisting of about 109 atoms precisely positioned into the confined mode of a miniature high finesse Fabry-Perot microcavity was used to study the effect of vibrational fluctuation on the optical transmission of the cavity.
Journal ArticleDOI
Low temperature growth of carbon nanotubes on carbon fibre to create a highly networked fuzzy fibre reinforced composite with superior electrical conductivity
Thomas Pozegic,Ian Hamerton,J.V. Anguita,Winnie Tang,Paolo Ballocchi,P. Jenkins,S. R. P. Silva +6 more
TL;DR: In this paper, a low-temperature carbon nanotube growth process using substrate water-cooling to maintain the bulk of the fiber material at lower temperatures, whilst the catalyst on the surface of the carbon fibre is at optimally higher temperatures required for carbon nanoteube growth.
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Stress simulation of carbon nanotubes in tension and compression
Toshiaki Natsuki,Morinobu Endo +1 more
TL;DR: Based on a continuum shell model, a structural mechanics approach is presented to simulate stress-strain behavior of carbon nanotubes (CNTs) in this paper, where the nanoscale continuum theory is established to directly incorporate the Morse potential function into the constitutive model of CNTs.
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Shell buckling of individual multiwalled carbon nanotubes using nanoindentation
TL;DR: In this article, the authors report an experimental technique in which individual multi-walled carbon nanotubes were axially compressed using a nanoindenter and the critical shell-buckling load was measured.
References
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Book
Advanced Engineering Mathematics
TL;DR: This book discusses ODEs, Partial Differential Equations, Fourier Series, Integrals, and Transforms, and Numerics for ODE's and PDE's, as well as numerical analysis and potential theory, and more.
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Large-scale synthesis of carbon nanotubes
TL;DR: In this article, the authors used a variant of the standard arc-discharge technique for fullerene synthesis under a helium atmosphere, where a carbonaceous deposit formed on one of the graphite rods, consisting of a macroscopic (diameter of about 5 mm) cylinder.
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Advanced Engineering Mathematics. ByErwin Kreyszig. Pp. xx, 899. 68s. (Wiley.)
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Energetics of Nanoscale Graphitic Tubules
TL;DR: It is found that the strain energy per carbon relative to an unstrained graphite sheet goes as the inverse square of the tubule radius, R, and is insensitive to other aspects of the lattice structure, indicating that relationships derivable from continuum elastic theory persist well into the small radius limit.
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Growth, Structure, and Properties of Graphite Whiskers
TL;DR: Graphite whiskers have been grown in a dc arc under a pressure of 92 atmospheres of argon and at 3900°K as discussed by the authors, with recoverable lengths up to 3 cm. They are embedded in a solid matrix of graphite which builds up by diffusion of carbon vapor from the positive to the negative electrode.