Materials Literature
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Abstract In this study, nano-sized titanium dioxide particulate reinforced pure magnesium matrix composite has been fabricated by powder metallurgy technique for five different weight fractions of reinforcement such as 4 wt%, 8 wt%, 12 wt%, 16 wt%, and 20 wt% respectively. Samples of these compositions are iso-statica…
Abstract New nanostructured Pt/(SnO2/C)-electrocatalyst (20 wt % Pt) is synthesized via platinum chemical deposited onto composite SnO2/C-support microparticles (4 wt % Sn). The composite support was prepared beforehand using unique method of the tin electrochemical deposition onto disperse carbon black particles. It…
Abstract With the rapid development of the economy, nitrogen oxide pollution has become a problem that cannot be ignored. Therefore, it is necessary to strengthen the control of nitrogen oxides in coal-fired power plants. This paper introduces the current denitration technology overview, including the selective cataly…
Bisphenol A (BPA) is widely present in natural surface water, and was found to be at the high level of μg/L in the surface water around a BPA manufacturing plant. Mass production and application make BPA ubiquitous in the environment, biota and humans. As a two-dimensional carbon based nanomaterial, graphene oxide (GO…
Co-crystallization frequently employs forces such as hydrogen bonds, halogen bonds, and π-π stacking to assemble molecules in a multi-component crystal. In an effort to increase the strength of the intermolecular interaction between the anti-cholesterol drug bezafibrate (BEZA), a wastewater contaminant, and hydrogen-b…
Particle-laden flows in helical channels are of interest for their applications in spiral particle separators used in the mining and mineral processing industries. In this paper, we extend the previous work of Lee, Stokes, and Bertozzi [“Behaviour of a particle-laden flow in a spiral channel,” Phys. Fluids 26, 043302…
A method is proposed for controlling the wettability of the surface of a fluorinated material and for controlling its biofouling by introducing modified nanodiamonds into the structure. The optimal modification conditions were determined by means of a set of methods based on the example of a molecular oxygen sensor. T…
This paper proposed a novel printed graphene based monopole antenna for UWB communication applications. Screen printed graphene laminate with the conductivity of 4.1×104S/m is used in this paper to replace expensive metal inks. The CPW feed planar monopole antenna has a wideband characteristic from 5 GHz to 13.5 GHz a…
Abstract Physical and computer modeling of continuous shaping is described. In the experiments, strip workpieces undergo continuous shaping on a TESA 10-50 pipe-electrowelding system for pipe of diameter 50 mm with wall thickness 1 mm. The pipe blanks are shaped in horizontal and vertical shaping stands, with estimati…
Abstract The adhesive properties of pressure-sensitive adhesives based on interpolymer complexes of poly(vinyl caprolactam) and poly(N-isopropylacrylamide) with oligo(ethylene glycol) are studied. Poly(N-isopropylacrylamide) and poly(vinyl caprolactam) in such hydrogen-bonded complexes retain phase-separation ability…
Single-component coatings of Cu and C and coatings in the Cu–C system with different carbon contents have been obtained by the magnetron sputtering method. The structure of coatings was investigated by the following techniques: scanning electron microscopy, energy-dispersive and X-ray diffraction analysis, Raman spect…
Abstract Photocatalytic materials have become a field of expansion in research, as evidenced by the many publication in science. With the many variation of semiconductors being tested as photocatalytic, it is necessary it with other materials or different semiconductor materials. Dealing with such an amount of informa…
Abstract This work presents the difficulties associated with the miniaturization of Hall Thruster engines and how state of the art materials and new manufacture techniques can potentially solve these problems. Hall Thrusters are electric propulsion systems that require specific magnetic field topography and uniform pr…
Abstract Counter-roller spinning is an effective method for forming large metal cylindrical parts. In this paper, the radial, axial and tangential counter-roller spinning forces were analyzed. The simulation analysis model was established and the counter-roller spinning was simulated based on the commercial FEA softwa…
Abstract The process of the pivoting friction of ShKh15 steel over the flat surface of a prism made of R6M5 steel was studied and an analytical description of interaction of the pivoting friction moment with the radius of the wear scar, load, and time of loading was proposed. In the steady wear mode, the pivoting fric…
Abstract The effect of the concentration of alloying components on the crystallization of amorphous (Fe73Si13B9)1 – x – yNbxCuy and (Co70Si12B9)1 – x – yFexNby alloys has been studied by X-ray diffraction and transmission electron microscopy in a wide composition region. The formation of the bcc structures in both the…
Abstract Two new coordination polymers {[Zn(HL)(HBpp)] · H2O}n (I) and [Cd(HL)(HBpe)]n (II) (H4L = 5-(2,3-dicarboxy phenoxy) isophthalic acid, Bpp = 1,3-bis(4-pyridyl)propane, Bpe = 1,2-bis(4-pyridyl)ethylene) were prepared and characterize by element analysis, powder XRD and single crystal X-ray diffraction (CCDC nos…
Polymeric composite foam with EFB fiber reinforced is new material that can be utilized as an alternative engineering material. EFB fiber utilization becomes the center of subject in this research. Moreover, these composites are unique with the presence of cavities (foam) in the matrix of unsaturated polyester resin.…
For accurate assessment of nuclear heating in fast reactors, a new coupled neutron and gamma heating calculation scheme has been developed based on VARIANT nodal transport solutions of neutron and gamma flux distributions. The MC2-3 code was extended to generate multigroup neutron and gamma cross sections and kinetic…
This work presents a systematic study of stress and strain of AlxGa1−xN/AlN with composition ranging from GaN to AlN, grown on a c-plane sapphire by metal-organic chemical vapor deposition, using synchrotron radiation high-resolution X-ray diffraction and reciprocal space mapping. The c-plane of the AlxGa1−xN epitaxia…