Journal ArticleDOI
Exceptionally high Young's modulus observed for individual carbon nanotubes
Reads0
Chats0
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
More filters
Journal ArticleDOI
Carbon nanofibers and carbon nanotubes in regenerative medicine.
TL;DR: A review of the latest applications of carbon nanofibers and carbon nanotubes in regenerative medicine can be found in this article, where the authors focus on the application of carbon carbon nanostructures in the field of bio-inspired medicine.
Journal ArticleDOI
The elastic modulus of single-wall carbon nanotubes: a continuum analysis incorporating interatomic potentials
TL;DR: In this paper, a nanoscale continuum theory is established to directly incorporate interatomic potentials into a continuum analysis without any parameter fitting, which is applied to study the linear elastic modulus of a single-wall carbon nanotube.
Journal ArticleDOI
Carbon nanotubes in novel ceramic matrix nanocomposites
TL;DR: In this article, an original catalytic method that produces ceramic-matrix composite powders that contain in situ grown nanotubes is described, and the synthesis parameters that favour the obtention of very high quantities of carbon-nanotubes are discussed.
Journal ArticleDOI
Improvement of Thermal and Mechanical Properties of Carbon Nanotube Composites through Chemical Functionalization
Carlos Velasco-Santos,Ana Laura Martínez-Hernández,Frank T. Fisher,and Rodney Ruoff,Victor M. Castaño +4 more
TL;DR: In this article, chemically functionalized multiwalled carbon nanotubes were incorporated into a polymer matrix by in situ polymerization, to improve the transfer of mechanical load through a chemical bond, which was demonstrated by Raman and infrared spectroscopies.
Journal ArticleDOI
Review of the mechanical properties of carbon nanofiber/polymer composites
TL;DR: In this article, the mechanical properties of vapor grown carbon nanofiber (VGCNF)/polymer composites are reviewed in terms of nanofibers dispersion and alignment, adhesion and interface between filler and polymer matrix.
References
More filters
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.
Journal ArticleDOI
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.
Journal ArticleDOI
Advanced Engineering Mathematics. ByErwin Kreyszig. Pp. xx, 899. 68s. (Wiley.)
Journal ArticleDOI
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.
Journal ArticleDOI
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.