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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Synthesis and characterization of conducting polythiophene/carbon nanotubes composites
TL;DR: In this paper, conducting polythiophene (PTh)/single-wall carbon nanotubes (SWNTs) composites were synthesized by the in situ chemical oxidative polymerization method.
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Effect of Functionalized Carbon Nanotubes on Molecular Interaction and Properties of Polyurethane Composites
TL;DR: In this paper, functionalized MWNTs were incorporated into PU by solution mixing to improve the mechanical and thermal properties of composites, and a homogeneous dispersion of MWNT was successfully achieved in PU matrix as evidenced by scanning electron microscopy.
Journal ArticleDOI
Curved nanostructured materials
TL;DR: In this paper, the authors demonstrate that various synthetic routes are capable of producing graphite-like nanomaterials with fascinating electronic and mechanical properties, such as nanocages, nanotubes and nano-arrangements exhibiting novel physico-chemical properties.
Journal ArticleDOI
Preparation and characterization of chitosan-grafted multiwalled carbon nanotubes and their electrochemical properties
TL;DR: In this article, a chitosan-grafted multiwalled carbon nanotubes composite (CS-MWCNT) was prepared via covalently grafting a biocompatible polymer CS onto the surfaces of MWCNT.
Journal ArticleDOI
Single crystals of single-walled carbon nanotubes formed by self-assembly.
Reto R. Schlittler,Jin Won Seo,Jin Won Seo,James K. Gimzewski,Colm Durkan,Mohammad S. M. Saifullah,Mark E. Welland +6 more
TL;DR: The results show that SWCNTs can be produced as a perfect bulk material on the micrometer scale and point toward the synthesis of bulk macroscopic crystalline material.
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.