Durant la dernière décennie, les nanocomposites à base d’époxy chargée de
particules inorganiques ont rapidement pris de l’importance, car ils peuvent offrir de
remarquables améliorations en termes de propriétés mécaniques ...
Les nanocomposites, sont des matériaux mixtes synthétisés à partir d’une
matrice polymérique mélangée à faible pourcentage avec des montmorillonites comme
charges inorganiques.
Les résultats obtenus montrent une ...
We investigated the athermal high -pressure behavior of the elastic
properties of SrTiO3 (STO) up to 26GPa in cubic and tetragonal phases using the ab initio
pseudo-potential method. Our results for the cubic phase are ...
Nanocrystalline In2O3 thin films have been deposited on glass substrates by Sol-
Gel spin coating technique. DRX, AFM, photoluminescence and UV-vis spectra
characterization was used for study the effect of Ethylene glycol ...
SEBAA, N; BENHALILIBA, M; TOMBAK, A; OCAK, Y. S(Université Frères Mentouri - Constantine 1, 2013-12-16)
We studied the structural and optical properties such as the crystal structure ,
the optical gap ,absorption and transmittance coefficient, grain size. And resistivity of ZnO
thin films grown by sputtering technique
Le présent travail, à caractère expérimental, porte sur l’étude de phénomènes de
recristallisation dans l’alliage AU4G. L’étude expérimentale est consacrée à l’observation des
grains, joints de grains ainsi que les gros ...
In this work ZnO and ZnO doped vanadium (1 - 6 %) thin films were deposited on
glass substrate by the pulsed laser deposition technique. The films were deposited at 500°C
under oxygen ambient pressure of 10-2 mbar with ...
The aim of this paper is to study the electromagnetic properties of a periodic
structure in the context of meta-materials. The design tool is the HFSS software which uses
the finite element method. The extraction of ...
On a étudié l’effet de la température sur la réactivité d’un verre quaternaire ;
synthétisé par le procédé sol-gel. Les résultats obtenus montrent que la réactivité de ce
verre dans une solution physiologique simulée ...
We report on alumina thin films growth from α-Al2O3 target by pulsed laser
deposition. The alumina plasma was induced by a KrF laser beam at a wavelength of 248 nm
and pulse duration of 25 ns. The laser fluence was set ...
Directional solidification is one of the most popular techniques for massive
production of multi-crystalline silicon (mc-Si). A numerical model is developed to simulate
the silicon ingot directional solidification process. ...
L’étude envisagée porte sur la synthèse des poudres d’argent destinées à la
préparation des pâtes conductrices utilisées pour la métallisation des cellules solaires. A
cet effet deux poudres ont été préparées par voie ...
The mechanical properties of materials are determined by the interactions between defects found in the crystal. In a bicrystal of bimaterials, the result forces exercising on the matrix dislocation near and parallel to an ...
Nanotubes are of great interest due to their high surface-to-volume ratios and size-dependent properties. Titanium dioxide nanotube array is a well-known nanostructured semiconductor oxide with improved functional ...
The objective of this work is a study of the structural properties (lattice parameters, total energy, bulk modulus) and electronic properties (band structure, density of states) of rare earth monochalcogenides LaX (X=Se, ...
By path integral formulation and delta functional technics we calculated the propagator of singular oscillator. We have foundthe discrete spectrum and the corresponding wave functions
The origin of ultra-high-energy cosmic rays is one of the most enigmatic questions in modern physics. The study of a such high-energy particles is a new and active research area where scientists wish to find the still-unknown ...
One of the most fundamental questions we can ask about a given gauge theory is its phase diagram. We present Monte Carlo simulations, for a simple three matrix model that exhibits an exotic phase transition. we focus on ...
Study the cosmic microwave background: polarization and anisotropy.The inflationary model has been
proposed to address the shortcomings of the standard model of cosmology. This cosmological model offers both a solution ...
Recent developments in radiotherapy techniques, particularly VMAT technique is a tool of choice in the treatment of tumors with complex shapes such as head and neck cancers.
Patients with head and neck cancer are prone ...