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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Synthesis and characterization of boron azadipyrromethene single-wall carbon nanotube electron donor-acceptor conjugates.
Kevin Flavin,Katherine E. Lawrence,Juergen Bartelmess,Mariusz Tasior,Cristina Navío,Carla Bittencourt,Donal F. O'Shea,Dirk M. Guldi,Silvia Giordani +8 more
TL;DR: The preparation of a novel donor-acceptor material, consisting of a red/near-infrared (NIR) absorbing boron azadipyrromethene donor covalently attached to a highly functionalized single-wall carbon nanotube (SWNT) acceptor, which bears great potential in the field of organic photovoltaics, has been demonstrated.
Journal ArticleDOI
Poly(brilliant cresyl blue)-carbonnanotube modified electrodes for determination of NADH and fabrication of ethanol dehydrogenase-based biosensor.
Dong-Wei Yang,Huihong Liu +1 more
TL;DR: The analytical performance achieved with the of the PBCB/SWNT nanocomposite electrode is expected to the development of novel biosensors, biofuel cells, and other bioelectrochemical devices.
Journal ArticleDOI
Mechanical Properties of Bamboo-like Boron Nitride Nanotubes by In Situ TEM and MD Simulations: Strengthening Effect of Interlocked Joint Interfaces
Dai-Ming Tang,Dai-Ming Tang,Cuilan Ren,Xianlong Wei,Ming-Sheng Wang,Chang Liu,Yoshio Bando,Dmitri Golberg +7 more
TL;DR: In this paper, the mechanical properties of BN nanobamboos are investigated by using direct in situ transmission electron microscopy tensile tests and molecular dynamics simulations, and a geometry strengthening effect is clearly demonstrated.
Journal ArticleDOI
Effective properties of a novel composite reinforced with short carbon fibers and radially aligned carbon nanotubes
Shailesh I. Kundalwal,M. C. Ray +1 more
TL;DR: In this article, a short fuzzy fiber-reinforced composite reinforced with aligned short carbon fibers and carbon nanotubes (CNTs) has been analyzed and the effective elastic properties of the composite were compared with those predicted by the finite element (FE) method.
Journal ArticleDOI
Strengthening behavior of carbon nanotube-graphene hybrids in copper matrix composites
TL;DR: In this article, the authors explored the unique architecture of reinforcement for developing advanced metal matrix composites (MMCs) and found that the high-efficiency strengthening effect was achieved by employing the hybrids of carbon nanotubes (CNTs and reduced graphene oxide (RGO) as reinforcements in the Cu matrix.
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.