Materials Literature
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A highly sensitive laser polarization-optical technique was developed and applied to investigations of a ferrofluid, which was placed in a magnetic field. A colloid solution of magnetite in kerosene was used as a sample. It was shown that the magnetooptic response of this substance is reliably registered at a volume s…
The permittivity coefficient, volume, and porosity of an elementary cell of fabric filler have been calculated. Two types of fabric structures have been considered using the example of carbon fabric: standard, in which filament yarn is cylindrical, and spread, it which it has a rectangular shape. A reflector of a mirr…
This article considers the technology of fabricating clusters of nickel atoms in a silicon crystalline lattice with controlled parameters. Silicon solar cells with clusters of nickel atoms have been fabricated and their parameters determined. It has been established that the content of nickel atoms in the lattice make…
Co-precipitation along with aging at 80 °C has been used to synthesize zinc-magnesium nanocomposite. Obtained materials were characterized by scanning electron micrograph, point energy dispersive X-ray analysis (EDX), Fourier transform infrared spectroscopy, X-ray diffraction analysis (XRD) and UV–visible diffuse refl…
Coherent interaction with off-resonance light can be used to shift the energy levels of atoms, molecules, and solids. The dominant effect is the optical Stark shift, but there is an additional contribution from the so-called Bloch-Siegert shift that has eluded direct and exclusive observation in solids. We observed an…
Spin-to-charge conversion using the inverse Rashba-Edelstein effect is measured in the 2D electron liquid existing at the interface between LaAlO 3 and SrTiO 3 . The effect is found to be larger than in the highly Rashba split Bi/Ag interface which we attribute to an amplifying effect due to a long carrier's momentum…
Abstract In this paper, a simple and rapid electrochemical method has been carried out to prepare Holmium oxide (Ho2O3) nanoparticles and composite film to serve as the active material in an energy storage electrode. Hybrid films of poly ortho aminophenol (POAP) and Ho2O3 were obtained through potentiodynamic depositi…
Well dispersed aluminium nitride(AlN) nanoparticles were synthesized by two-step ball milling coupled with surface coating. The AlN nanofluids (NFs) were prepared by dispersing as-prepared nanoparticles into transformer oil. The modified NFs is investigated as a new generation of transformer oil. The insulating proper…
High temperature vulcanized (HTV) silicone rubber (SiR), due to its excellent electrical insulation, elasticity and temperature resistance, is used in cable accessories for HVDC cables. The space charge, generated under dc stress in SiR, would distort the local electric field, further influencing the characteristics o…
Gold nanoparticles are everywhere! Aside from the curious and beautiful historic uses as colloidal additives to stain Roman glass in the fourth century and the discovery of the wondrous and different properties of colloidal gold by Michael Faraday in the mid nineteenth century (Tweney et al. 2004 ), gold nanoparticles…
Energy transfer processes affecting the luminescence properties and methods of controlling them by a change in the compositions and structures of luminescent compounds are analyzed in the review on example of lanthanide aromatic carboxylates. The analysis demonstrates clearly how the understanding of the physical regu…
An extensive set of refractive indices determined at λ = 589.3 nm ( n D) from ~2600 measurements on 1200 minerals, 675 synthetic compounds, ~200 F-containing compounds, 65 Cl-containing compounds, 500 non-hydrogen-bonded hydroxyl-containing compounds, and ~175 moderately strong hydrogen-bonded hydroxyl-containing comp…
Outdoor insulators are often subject to corona discharges and the problem is becoming more prevalent with the increasing use of higher transmission voltage levels. For polymeric insulators, exposure to such discharges can alter the chemical structure of basic polymer and degrade surface properties. This paper investig…
ZnO NPs have good antimicrobial activity that can be utilized as agents to prevent harmful microorganism growth in food. However, the use of ZnO NPs as food additive is limited by the perceived high toxicity of ZnO NPs in many earlier toxicity studies. In this study, surface modification by silica coating was used to…
Polypropylene (PP) has been paid much attention due to its high melting point, excellent electrical insulting performance and thermoplastic property, which is potential to replace the XLPE as HVDC cable insulating material. Blending PP with polyolefin elastomer (POE) is an effective way to modify its stiffness and bri…
Coalbed methane is one of unconventional natural gas, such as shale gas and methane hydrate. Shale gas was developed aggressively a few years ago in United States. In Japan, the development of technology for producing methane hydrate has been carried out. Coalbed methane was produced commercially since 1990's in Unite…
Abstract Ultraviolet photons of KrF laser (248 nm) was used for the synthesis of nanometric films based on iron and chromium oxides (Fe2O3 − X (0 ≤ x ≤ 1) and Cr3 − X O3 − Y (0 ≤ x ≤ 2; 0 ≤ y ≤ 2)) with variable thickness, stoichiometry, and electrical properties. Film deposition was carried out on the silicon substra…
Cyclodextrin-based cationic star polymers were synthesized using β-cyclodextrin (β-CD) core, and 2-(dimethylamino) ethyl methacrylate (DMAEMA) as hydrophilic arms. Star-shaped polymers were prepared via a simplified electrochemically mediated ATRP (seATRP) under potentiostatic and galvanostatic conditions. The polymer…
editorial
2D radial injection vacuum-assisted resin transfer molding experiments were performed using anisotropic plainwoven fabrics to determine the void distribution and the relationship between the void fraction and the resin flow velocity at arbitrary resin impregnation angles. The obtained void fraction values vary with th…