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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γ-Fe2O3@CNTs Anode Materials for Lithium Ion Batteries Investigated by Electron Energy Loss Spectroscopy
TL;DR: In this paper, the capacity of γ-Fe2O3@CNTs composite anodes was investigated and it was shown that the Fe chemical state plays a critical role in the evolution of the capacity during the cycling process.
Journal ArticleDOI
Mechanical properties of carbon nanotube reinforced polymer nanocomposites: A coarse-grained model
TL;DR: In this article, a coarse-grained model of carbon nanotube (CNT) reinforced polymer matrix composites is developed to estimate the mechanical properties of the nanocomposites with high accuracy and low computational cost.
Journal ArticleDOI
Micromechanical investigation of creep-recovery behavior of carbon nanotube-reinforced polymer nanocomposites
TL;DR: In this paper, the effects of volume fraction and diameter of the CNTs, loading level and interphase including the materials behavior and size on the creep-recovery strain of the nanocomposite were examined.
Patent
Polymer-carbon nanotube composites
TL;DR: In this paper, a process for the production of a composite comprising a polymer and carbon nanotubes is described. But this process requires the polymer to have at least one hydrophobic monomer unit.
Journal ArticleDOI
Deformation of isolated single-wall carbon nanotubes in electrospun polymer nanofibres
TL;DR: In this paper, electron microscopy and Raman spectroscopy were used to identify isolated, well-aligned, single-wall carbon nanotubes (SWNTs) in polyvinyl alcohol (PVA) nanofibres.
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.
Journal ArticleDOI
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.