Materials Literature
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We measured the thermopower of LaFe11.6Si1.4 and its hydride LaFe11.6Si1.4Hy to investigate changes in the electronic structure induced by hydriding. Using a model based on a density-of-states (DOS) function we can accurately describe a non-linear temperature dependence of the thermopower over a wide temperature range…
The assessment of Ricinus communis as corrosion inhibitor for aluminium alloy in 2M HCl and H3PO4 acid solution using gravimetric and potentiodynamic polarization techniques was investigated at 298K. The results revealed that Ricinus communis oil in 2M HCl and H3PO4-aluminium environment decreased the corrosion rate a…
Low current discharges are of concern in the context of predicting the lifetime of outdoor polymeric insulators. The nature of ac surface discharges changes markedly between peak currents of 0.5 mA and 10 mA: the electrical characteristics typically changing from unstable to stable behavior when the peak current incre…
ABSTRACT One of the important aspects in the development of new tire compounds is the correlation between the dynamic mechanical properties of the rubber, measured on a laboratory scale, and the actual tire performance. The measuring protocol for dynamic mechanical properties with high precision and good correlation w…
More recently, motivated by extensively technical applications of carbon nanostructures, there is a growing interest in exploring novel non-carbon nanostructures. As the nearest neighbor of carbon in the periodic table, boron has exceptional properties of low volatility and high melting point and is stronger than stee…
Schiff-base macrocycles 1, which have a crown ether-like interior, form ionic nematic lyotropic liquid crystals in various organic solvents when functionalized with long alkoxy substituents and complexed to diverse ammonium and alkali metal salts. From X-ray diffraction and transmission electron microscopy studies, an…
ABSTRACT Pressure-sensitive adhesives (PSAs), or self-adhesives, are used in many applications, including safety labels for power equipment, automotive interior trim assembly, and sound/vibration–damping films. The objective of this study was to develop a biodegradable skim rubber–based bioadhesive blended with poly (…
New methods for the synthesis of silicon monoxide are considered. The structure and phase composition of the compounds synthesized are studied by mass spectrometry, X-ray diffraction analysis, and IR spectroscopy. New opportunities for analysis of silicon monoxide in view of its use in nanotechnology and the electroni…
Abstract Nanocrystalline Gd 3 Ga 5 O 12 :Eu 3+ with cubic phase was prepared by a urea homogeneous precipitation method. X‐ray diffraction (XRD), field emission scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FT‐IR), thermo‐gravimetric and differential thermal analysis (TG‐DTA) and photolu…
Abstract AM50/Mg2Si composites containing 5.7 wt. % and 9.9 wt. %. of Mg2Si reinforcing phase were prepared successfully by casting method. The microstructure of the cast AM50/Mg2Si magnesium matrix composites was investigated by light microscopy and X-ray diffractometry (XRD). The microstructure of these composites w…
This article took the sodium sulfate and calcium chloride as the raw material and prepared calcium sulfate whiskers by hydrothermal method. The experimental results show that the calcium sulfate precursors are prepared by the reverse feed mode in which the sodium sulfate solution drop into the calcium chloride solutio…
C/SiC composites have widely application prospects in the field of aeronautic and aerospace for their excellent properties. The joining of C/SiC composites is a key to fabricate large and complex components. In this paper, 1D C/SiC pins were prepared by precursor infiltration and pyrolysis (PIP) process and used to jo…
This paper reports the tailoring thermal conductivity of novel dense vertical and horizontal graphene (DVHG) structures, which we previously discovered. By removing horizontal graphene layers, resulting in forming vertical graphene contacts to the electrode, we not only improved the thermal conductivity by a factor of…
Single crystals of non-linear optical material, L-Serine Sodium Nitrate (LSSN) have been grown by slow evaporation technique. The crystal system and lattice parameters were found from single crystal X-ray diffraction. Some fundamental data such as valance electron plasma energy, Penn gap, Fermi energy and electronic p…
Abstract Kinetic behaviour and thermo-mechanical properties of composites based on unsaturated polyester (UP) resin and organically modified clay (OMC) are completely dependent on their preparation procedure. The investigation on the preparation procedure of the UP/OMC suspensions under high shear conditions alone (sh…
This paper presents a study on the effect of mineral filler on the polymer composite material based on waste products of heat and power engineering - fly ash. This type of waste products has never been used for the production of polymer-mineral composites. Depending on the type of ash, its chemical composition and its…
In semiconductor fabrication, pattern collapse of high aspect ratio structures after wet processing has been a critical issue and attracted a lot of interest. On the other hand, very little attention is spent on the potential wetting issues as feature dimensions are continuously scaled down and novel materials with di…
Polyisoprenes predominantly composed of cis-1,4-units are studied by the methods of NMR spectroscopy (600 MHz), GPC, and DSC. A comparative investigation of synthetic polyisoprene and natural rubbers shows that a small (up to 3–4 mol %) amount of polymer-chain disruptions, such as inverse additions of cis-1,4 units an…
Abstract This study presents a method of obtaining porous materials based on the rigid polyurethane foam (RPURF) as the matrix and containing thermoplastic polystyrene beads (EPS) as the fillers. In RPURF-EPS composites, the compact EPS were expanded after heating above a glass transition temperature of the EPS and ga…
Material properties, corrosion, and metal release from stainless steel powders are important factors to assess any occupational health hazards. This paper elucidates the corrosion behavior of stainless steel particles (inert-gas-atomized AISI 316L powders sized < 45μm, polished and non-polished) compared with correspo…