Journal ArticleDOI
Exceptionally high Young's modulus observed for individual carbon nanotubes
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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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Ga-filled single-crystalline MgO nanotube: Wide-temperature range nanothermometer
TL;DR: In this paper, a one-step approach was developed to synthesize single-crystalline MgO nanotubes and in situ fill them with liquid gallium column to obtain a wide-temperature range nanothermometer.
Journal ArticleDOI
Analysis of photoluminescence from solubilized single-walled carbon nanotubes
Marcus Jones,Chaiwat Engtrakul,Wyatt K. Metzger,Randy J. Ellingson,Arthur J. Nozik,Michael J. Heben,Garry Rumbles +6 more
TL;DR: The functional form of the photoluminescence line shape from individual single-walled carbon nanotube (SWNT) species is found to contain a significant Lorentzian component and the Stokes shift is observed to be very small, which suggests an excitonic dephasing mechanism that is largely decoupled from surrounding solvent and surfactant molecules.
Journal ArticleDOI
One-step solid-state thermolysis of a metal–organic framework: a simple and facile route to large-scale of multiwalled carbon nanotubes
TL;DR: A simple and facile solid-state approach to large-scale synthesis of multiwalled carbon nanotubes (MCNTs) by one-step direct thermolysis of a metal-organic framework in a one-end closed conventional horizontal tube furnace under relatively low temperature without using any additional carrier gas or catalyst.
Journal ArticleDOI
Static response and free vibration of functionally graded carbon nanotube-reinforced composite rectangular plates resting on Winkler–Pasternak elastic foundations
TL;DR: In this article, the static response and free vibration of functionally graded carbon nanotube reinforced composite (FG-CNTRC) rectangular plate resting on Winkler-Pasternak elastic foundations using an analytical approach are studied.
Journal ArticleDOI
Tribological properties of carbon nanotube bundles predicted from atomistic simulations
Boris Ni,Susan B. Sinnott +1 more
TL;DR: In this paper, the authors investigate the responses of bundles of single-walled carbon nanotubes to compressive and shear forces between two sliding diamond surfaces and determine the forces on the atoms in the simulations using a many-body reactive empirical potential for hydrocarbons coupled to Lennard-Jones potentials.
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.