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
Functionalized Few-Walled Carbon Nanotubes for Mechanical Reinforcement of Polymeric Composites
TL;DR: The results indicated that FWNTs are practically the optimum reinforcing filler for the next generation of carbon nanotube-based composite materials.
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Carbon Nanotubes and Spheres Produced by Modified Ferrocene Pyrolysis
TL;DR: In this article, the size of the MWCNTs can be tuned by changing the ratio of ferrocene/anthracene in the mixture of powder mixtures of 9,10-dibromoanthracene.
Journal ArticleDOI
Axially compressed buckling of pressured multiwall carbon nanotubes
TL;DR: In this paper, the axially compressed buckling of an individual multi-wall carbon nanotube subjected to an internal or external radial pressure was studied and the buckling mode associated with the minimum axial stress was determined.
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Enhanced mechanical properties and morphological characterizations of poly(vinyl alcohol)–carbon nanotube composite films
TL;DR: In this paper, a tensile test was carried out on free-standing composite films of polyvinyl alcohol (PVA) and multiwall carbon nanotubes (MWNTs) for different loading levels.
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Functionalization of carbon nanotubes for fabrication of CNT/epoxy nanocomposites
TL;DR: In this article, carbon nanotubes (CNTs) were noncovalently functionalized with polystyrene sulfonate (PSS) and poly(4-aminostyrene) (PAS) to improve the dispersion of CNTs in epoxy matrix composites.
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.