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
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The future of the fullerenes
TL;DR: In this article, the authors outline the basic features of fullerene nanotubes and the more recent findings in their mechanical and electrical properties, and discuss the potential of these molecular fibers for structural materials and for the submicro-electronics application.
Journal ArticleDOI
Rheological characterization of melt processed polycarbonate-multiwalled carbon nanotube composites
TL;DR: In this article, the composites were rheologically characterized using an ARES-rheometer in the dynamic mode under nitrogen atmosphere at 280°C and frequency varying from 100 to 0.056 rad/s.
Journal ArticleDOI
Boron Nitride Analogs of Fullerenes (the Fulborenes), Nanotubes, and Fullerites (the Fulborenites)
V. V. Pokropivny,V.V. Skorokhod,G. S. Oleinik,Alexander V. Kurdyumov,Tamara S. Bartnitskaya,A. V. Pokropivny,Alexander G. Sisonyuk,Dmitry M. Sheichenko +7 more
TL;DR: In this paper, the authors proposed a superdense diamond based on Me 2 B 12 N 12 -fulborenide with bcc lattice and a quantum hypersound generator based on BN nanotubes.
Journal ArticleDOI
Measuring physical and mechanical properties of individual carbon nanotubes by in situ TEM
TL;DR: In this paper, the authors used in situ transmission electron microscopy to measure the electric, mechanical and field emission properties of individual carbon nanotubes with well-defined structures, which led to the transport of a superhigh current density at room temperature without heat dissipation.
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Organic electronics from perylene to organic photovoltaics: painting a brief history with a broad brush
TL;DR: In this paper, the authors analyzed the motivations behind specific BHJ designs and compared the performance of the device to the active layer composites, and examined the effect of chemical functionalization in a series of fullerene derivatives, carbon nanotubes and non-fullerene based compounds on their performances in PSCs.
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.