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
The Mechanical Properties of Nanowires.
TL;DR: A critical evaluation of the characterization techniques and methodologies for the characterization and understanding of the mechanical properties of nanowires, including elasticity, plasticity, anelasticity and strength were presented.
Journal ArticleDOI
Comparative theoretical study of single-wall carbon and boron-nitride nanotubes
TL;DR: In this article, a comparative study of BN and C nanotubes using a full potential linear combination of atomic orbitals approach, as well as a planewave pseudopotential method is presented.
Journal ArticleDOI
Ranges of applicability for the continuum beam model in the mechanics of carbon nanotubes and nanorods
TL;DR: In this article, the validity of the continuum beam model for carbon nanotubes (NTs) and nanorods is examined, and applicability of all assumptions used in the model is restricted by the two criteria for geometric parameters that characterize the structure of NTs.
Journal ArticleDOI
Fabrication of carbon nanoscrolls from monolayer graphene.
TL;DR: A simple way of synthesizing carbon nanotube (CNT)/graphene (GN) nanoscroll core/shell nanostructures is demonstrated using molecular dynamics simulations and it is found that the van der Waals force plays an important role in the formation of the CNT/GN nanosc Roll-composite nanostructure.
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The interplay between carbon nanomaterials and amyloid fibrils in bio-nanotechnology
Chaoxu Li,Raffaele Mezzenga +1 more
TL;DR: The hybridization of carbon nanomaterials and amyloid fibrils offers new possibilities for combining some of their desirable properties into nanocomposites of possible use in electronics, actuators, sensing, biomedicine and structural materials.
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.