Journal ArticleDOI
Conductivity and dielectric properties of iron-containing nanocomposites
TLDR
In this article, the electric conductivity and dielectric properties of composites comprising iron nanoparticles dispersed in a low-density polyethylene matrix were studied. And the regions of applicability, in which the percolation model provides adequate description of the electrical conductivity of the nanocomposites, were determined.Abstract:
We have studied the electric conductivity and dielectric properties of composites comprising iron nanoparticles dispersed in a low-density polyethylene matrix. The specific conductivity and dielectric constant as functions of the differential mass fraction of iron nanoparticles in such composites occurring in the semiconductor state are described by power relations with the average exponents (critical indices) t=s=1.5±0.3. The regions of applicability, in which the percolation model provides adequate description of the electric conductivity and dielectric properties of the nanocomposites, are determined.read more
Citations
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Complex permittivity of composites based on dielectric matrices with carbon nanotubes
TL;DR: In this paper, the transmission spectra of microwave electromagnetic radiation interacting with a sample are used to determine the complex permittivity of a composite material based on a two-component epoxy adhesive having a certain volume fraction of inclusions in the form of multilayer carbon nanotubes or fine graphite particles.
Journal ArticleDOI
Elastic and viscous properties of nanocomposite films based on low-density polyethylene
TL;DR: It has been shown that the acoustic impedance of the materials under study may be varied by more than 30% and 40% for longitudinal and shear acoustic waves, respectively, within the same technological procedure.
Journal ArticleDOI
Optical properties of metal-polymer nanocomposites based on iron and high-pressure polyethylene
TL;DR: In this paper, the optical reflectance and absorption spectra of nanocomposite materials based on iron and high pressure polyethylene (with different percentages of iron) were measured at room temperature in the visible and near-infrared regions.
Journal ArticleDOI
Acoustic waves in structure "piezoelectric plate-polymeric nanocomposite film".
TL;DR: The resonant attenuation of investigated waves for the certain ratios of plate and film thicknesses was found and the prospects of the development of structures for SH(0) waves consisting of nanocomposite polymeric substrates and thin piezoelectric plates are opened.
Journal ArticleDOI
Synthesis and Structural Investigations of Metal-Containing Nanocomposites Based on Polyethylene
TL;DR: In this article, copper-containing nanoparticles in a high-pressure polyethylene matrix were prepared by thermal decomposition of copper acetate and an electron microscopic study of the morphology and an X-ray diffraction analysis of the phase composition of a nanocomposite were carried out.
References
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Book
Electronic Properties of Doped Semiconductors
Boris I Shklovskii,A. L. Efros +1 more
TL;DR: In the last fifteen years, there has been a noticeable shift towards impure semiconductors -a shift which came about because it is precisely the impurities that are essential to a number of major semiconductor devices as discussed by the authors.
Journal ArticleDOI
Metalcontaining nano-particles within polymeric matrices: preparation, structure, and properties
TL;DR: A universal method for introduction of metal-containing nano-particles in polymeric matrices has been developed, which allows for the fabricating of large amounts (kilogram-scale) of polymeric nanoparticles composites as discussed by the authors.