Materials Literature
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The most recent spectroscopic studies of single bubble (SBSL) and multibubble (MBSL) sonoluminescence reveal that the origin of extreme intrabubble conditions is related to nonequilibrium plasma formed inside the collapsing bubbles. Analysis of the relative populations of OH(A2Σ+) vibrational states observed during MB…
Thin ferroelectric Pb(Zr 0.48 Ti 0.52 )O 3 lead zirconate titanate films have been prepared on platinized silicon substrates via chemical solution deposition. The starting film-forming solutions were prepared by reacting lead acetate with Ti and Zr alkoxides in 2-methoxyethanol. The electrical properties of the films…
In this study, we attempt for the first time to couple sonication and photo-Fenton for bacterial inactivation of secondary treated effluent. Synthetic wastewater was subjected to sequential high-frequency/low power sonication, followed by mild photo-Fenton treatment, under a solar simulator. It was followed by the ass…
Dipyrromethanes are of wide interest as building blocks in organic synthesis, namely, in the preparation of porphyrins and porphyrin analogs such as meso-substituted corroles, chlorins, expanded po...
Acrylic resin (AR) based electromagnetic interference (EMI) shielding composites have been prepared by incorporation of up to 30 wt% activated charcoal (AC) in AR matrix. These composites have been characterized by XRD, Raman spectroscopy, scanning electron microscopy, dielectric, and EMI shielding measurement techniq…
Abstract Friction tests have been carried out on bearing steel friction pairs coated with a-C:H and ta-C under lubricated conditions with 1-hexadecene and pure oleic acid, respectively. Main results show that ta-C leads to the super-low regime with oleic acid (friction coefficient below 0.01) and that a-C:H is quite w…
Interface engineering in perovskite oxide superlattices has developed into a flourishing field, enabling not only further tuning of the exceptional properties, but also giving access to emergent physical phenomena. Here, we reveal a new mechanism for enhancing the electric polarization by the interface-induced oxygen…
In this article we explore how structural parameters of composites filled with one-dimensional, electrically conducting elements (such as sticks, needles, chains, or rods) affect the percolation properties of the system. To this end, we perform Monte Carlo simulations of asymmetric two-dimensional stick systems with a…
3 commercial types electroless nickel phosphorous baths - low, mid and high phosphorous - and 2 lab-developed electroless nickel-boron bath - both based on borohydride but differing by their stabilizer, lead and thallium salts respectively - were used in this study. Samples were investigated in the as-deposited and he…
Uniaxial phase of the axial quadrupole spin-1 magnet in an external magnetic field is investigated. A case where the system includes single-ion anisotropy and anisotropic biquadratic exchange interaction the most general form, is considered. It is proved, that the molecular field approximation of the relative magnetiz…
A localization strip of plastic deformation between two materials assuming that the graph of intermaterial deformation has a peak-tooth is investigated. Dirichlet problem for a piecewise-analytic function is formulated and solved exactly. The numerical results of the length of localization strip of plastic deformation…
We report the vibrational spectral analysis was carried out using FT-IR and FT-Raman spectroscopy for 1-(pyrid-4-yl)piperazine (PyPi). Single crystals of PyPi suitable for X-ray structural analysis were obtained. The acid-base properties are also reported. PyPi supported on a weak acid cation-exchanger in the single p…
Because of their self-similar nature, fractals can easily be used to generate tilings in the plane. In this paper, we use techniques from the article “Fractal Tilings in the Plane” by Darst, Palagallo and Price to investigate various fractal tilings. We consider both examples from the article and our own variations in…
One of the main tasks in developing a technical process to manufacture castings is to organize risering at the stage of solidification, which ensures the set level on shrinkable porosity and shrinkage cavities. As known, generally, the risering zone consists of a feeder zone and a feeding butt end zone. In references…
The article considers the features to form a structure and properties of Fe-C-Cr-V system coverings provided by the plasma and powder coating (build-up) on the low carbon steel. It is shown that it is possible to restore a rod of hydraulic cylinders of small diameter by the plasma and powder coating. Thus, to avoid bu…
Article 9th International Conference on Novel Materials and their Synthesis (NMS-IX) and 23rd International Symposium on Fine Chemistry and Functional Polymers (FCFP-XXIII) was published on May 19, 2014 in the journal Pure and Applied Chemistry (volume 86, issue 5).
A new approach to- and method for characterization of fissile nuclide\ncontaminated soils and process piping has been developed and implemented for low and\nintermediate level wastes, using new calibration bases for photon counting. The method\nhas been validated by integrating the capabilities of MCNP5 and ISOCS for…
Numerical modeling of the effect of the gap between electrodes on the MTF of an example liquid crystal lens is presented. The results are compared with those of a lens using a layer of “floating” electrodes above the addressed concentric ring electrodes.
ABSTRACT The focus of this study is to experimentally investigate the mechanical properties of fiberglass reinforced composite with various aspect ratios and loading fractions in the quasi‐static and low‐velocity impact loading conditions. In this study, short fiberglass reinforced polycarbonate composite materials we…
Magnetic nanoparticles has found many applications in biomedical and technological areas. The objective of this work is the preparation and characterization of PMMA microspheres containing NMPs mainly composed of magnetite (Fe3O4). For the preparation of NMPs coated with oleic acid was used for coprecipitation techniq…