Materials Literature
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NaAlH(4) doped with CeCl(3) was prepared by ball milling and cycled under hydrogen. As-prepared samples and cycled material were investigated by X-ray absorption spectroscopy in order to elucidate the local structure around Ce atoms in the material. It was found that, in contrast to Ti doped NaAlH(4), the oxidation st…
Polydimethylsiloxane (PDMS) rubber can be thermally decomposed in air to produce silica vapor species which can deposit on porous anodic aluminum oxide (AAO) templates to produce silica nanotubes with a smooth surface and highly controllable thickness.
Surface modification of carbon nanoballs (CNBs) using a plasma in liquid phase (solution plasma) and preparation of CNB/polyamide 6 (PA6) nanocomposite were demonstrated. Reactive species such as OH radical and H2O2 generated from solution plasma oxidized the surface of CNBs and changed into hydrophilic. Mechanical pr…
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L'objectif de cet article est de faire une revue synthtique des donnes de la littrature qui permettent de caractriser le comportement de l'hydrogne dans les matriaux mtalliques et plus particulirement les effets d'endommagement associs l'hydrogne en relation avec les interactions plasticit-environnement. Dans cette pr…
Submicron-sized α-Si3N4 and nanosized amorphous Si3N4 powders were sintered by spark plasma sintering at 1700°C for holding times of 60 to 120 s at heating rates of 1.7 to 6.1°C/s with Y2O3 and Al2O3 sintering additives. The nanostructure control of liquid-phase sintered Si3N4 ceramics was achieved by selecting optimu…
Photodegradation of LDPE/modified starch blends 80/20 m/m has been examined by scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FTIR) and X ray diffraction (DRX) before and after exposure to ultraviolet radiation (UV). Samples were exposed to UV in the laboratory for periods of 6, 24, 48 an…
A porous anodic aluminum oxide (AAO) template with a TiN bottom electrode was fabricated on a substrate. The anodizing process ended up stably with the formation of pillars penetrating the barrier layer, and the pillars were selectively and uniformly removed using standard clean-1 solution . Ru nanowires were fabricat…
A nanomaterial was synthesized by hydrothermally treating an amorphous manganese oxide, which was obtained by the reaction between and at ambient conditions. It is only in a narrow range of adding an amount of NaOH (e.g., in our case) that can be obtained. The addition of NaOH may affect the radii of hydrated and, con…
The transmission spectra for photonic crystal in anodic alumina have been investigated with the periodic anodization voltage function, including the time, periodicities, and voltage. The shift of the transmission dips can be related to the current density-time curve. The intensity of the diffraction light in anodized…
The linear trirhodium compound, Rh3(dpa)4Cl2 (1), and its one-electron oxidation product, [Rh3(dpa)4Cl2]BF4 (2), have been synthesized and studied extensively. The magnetic measurement for compound 1 shows that it possesses one unpaired electron that is assigned to occupy the sigma(nb) orbital (2A2) by DFT calculation…
Mn-90.4 wt% Sb alloy specimens were solidified under both uniform magnetic field and magnetic field gradient conditions. The solidification behavior was examined to elucidate the effects of high magnetic fields on the solidified structure evolution of this hypoeutectic alloy. The macrostructures on the longitudinal se…
The Goos-Hänchen (GH) shifts of the reflected waves from nonlinear nanocomposites of interleaved nonspherical metal and dielectric particles are investigated both theoretically and numerically.First, based on spectral representation theory and effective medium approximation, we derive the field-dependent effective per…
This work presents the fabrication of thermopiles with high output voltage. A series of mixed thick/thin-film thermopiles were performed – one of the arms of the thermocouples was screen-printed (PdAg- or Ag-based thick-film layers), the second was made of magnetron sputtered semiconductor (compositions based on Ge).…
It has been proved that an addition of boron carbide introduced as an inoculant to the chromium white cast iron changes the structureof castings. Castings after inoculation revealed a different structure with numerous grains. Primary precipitates of chromium carbide also appeared, reducing the mechanical properties of…
Currently, many of the polymer-coated fasteners on the market are designed for improved corrosion performance in treated wood; yet, there is no way to evaluate their corrosion performance. In this study, a common technique for measuring the corrosion performance of polymer-coated metals, electrochemical impedance spec…
An attempt has been made towards the synthesis of strongly adherent orthophenylenediamine (OPD) coating on mild steel substrates, with an objective of using the OPD for corrosion protection of steel in hydrochloric acid medium. In this work, the OPD coatings were obtained by electrochemical reduction of orthonitroanil…
This paper is devoted to the study of the effect of the texture, phase composition, and microstructure on the irradiation-induced growth strain (GS) of zirconium-based alloys. GS measurements and TEM microstructural examinations were performed on Zry-2, NSF, and E635 samples in the recrystallized, beta quenched and co…
象 Nd2Fe14B 和 Sm 公司那样的稀土元素的 intermetallics 广泛地被用作高效的永久磁铁，因为他们把高 magnetocrystalline anisotropy 与合理磁化和居里温度相结合。anisotropy 是纺纱轨道联合和静电的水晶地相互作用的联合效果。主要贡献来自稀土元素的 4f 电子，它从水晶的环境是屏蔽得好的，但是展出联合的一条强壮的纺纱轨道。在这限制， magnetocrystalline anisotropy 有很透明的物理解释，实质上等于水晶领域里的 Hund's-rules 4f 离子的精力的 anisotropy 精力。为低顺序的单轴的 anisotropy 常数 K1 的相应表示被用…
Cadmium Zinc sulfide (CdZnS) thin films have been deposited on to ultrasonically cleaned glass substrates with various Zn 2+ concentrations by Micro wave assistedChemical Bath Deposition (Mwave-CBD) technique. The structural studies were carried out by using X-ray diffraction (XRD) studies as a function of Zn 2+ conce…