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
Super-Compressible Foamlike Carbon Nanotube Films
Anyuan Cao,Anyuan Cao,Anyuan Cao,Pamela L. Dickrell,Pamela L. Dickrell,Pamela L. Dickrell,W. Gregory Sawyer,W. Gregory Sawyer,W. Gregory Sawyer,Mehrdad N. Ghasemi-Nejhad,Mehrdad N. Ghasemi-Nejhad,Mehrdad N. Ghasemi-Nejhad,Pulickel M. Ajayan,Pulickel M. Ajayan,Pulickel M. Ajayan +14 more
TL;DR: It is reported that freestanding films of vertically aligned carbon nanotubes exhibit super-compressible foamlike behavior, and the lightweight, highly resilient nanotube films may be useful as compliant and energy-absorbing coatings.
Journal ArticleDOI
Controlling the dispersion of multi-wall carbon nanotubes in aqueous surfactant solution
TL;DR: In this article, the dispersion rate of multi-wall carbon nanotubes (MWCNTs) in aqueous surfactant solution has been monitored by UV-vis spectroscopy and transmission electron microscopy.
Journal ArticleDOI
Carbon nanotube composites
TL;DR: Carbon nanotubes are molecular-scale tubes of graphitic carbon with outstanding properties as discussed by the authors, with Young's moduli as high as 1 TPa and tensile strengths of up to 63 GPa.
Journal ArticleDOI
Vertically Aligned Carbon Nanofibers and Related Structures: Controlled Synthesis and Directed Assembly
Anatoli V. Melechko,Vladimir I. Merkulov,Timothy E. McKnight,Michael A. Guillorn,Kate L. Klein,Douglas H. Lowndes,Michael L. Simpson +6 more
TL;DR: In this article, a review of the application areas for carbon nanotubes and nanofibers including electron field-emission sources, electrochemical probes, functionalized sensor elements, scanning probe microscopy tips, nanoelectromechanical systems (NEMS), hydrogen and charge storage, and catalyst support.
Journal ArticleDOI
Supercapacitor electrodes from multiwalled carbon nanotubes
TL;DR: In this paper, the capacitance of supercapacitors built from multi-walled carbon nanotubes electrodes has been investigated and correlated with microtexture and elemental composition of the 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.