Materials Literature
按标题、摘要、年份、主题和来源检索公开元数据。结果保留作者、摘要、分类与原始来源链接。
Hard coatings such as nickel, chromium and tungsten can improve the surface properties of the substrate. The coating surfaces have been developed for increase of the wear resistance, hardness or corrosion resistance for industrial applications. Electroplating methods generally used to obtain producing these hard coati…
The results of using of ion-beam technologies methods for finish treatment of metal products are presented. The experiments were performed at the installation ILUR-03, which allows the operation of cleaning, polishing and surface layers doping of the material of unlimited length cylindrical samples by radial Ar + ions…
Uranium-molybdenum alloys are perspective nuclear fuel for fast reactors. In this work, a study was conducted of the interaction of uranium-molybdenum alloy with iron and chromium steel at an elevated temperature of 750 °C for 5 hours. It was found that the constant rate of the interaction layer growth for diffusion c…
Plasma electrolytic oxidation (PEO) coating is gaining attention as a promising surface treatment technique for lightweight metals and alloys such as Al, Mg and Ti. The coating involves complex interactions among various process parameters including substrate composition, current modes and electrolyte composition. In…
The study of electric machines subject to rotor eccentricity is usually performed using a winding and permeance function approach. In a companion paper, an alternative method is investigated based on conformal mapping. The geometry of a an eccentric round-rotor machine has been mapped into a uniform air-gap topology b…
By the analysis of thermal creep data in conjunction with structural-phase state the most likely mechanisms of UN creep are considered. An equation relating the thermal and radiation creep of nitride fuel with such important parameters as plutonium content, porosity, grain size, the content of impurities of transition…
Influence of electrodeposition conditions and heat treatment on the structure and properties of metallic coatings has been considered. It has been that at different values of overvoltage, metals crystallize with a cellular, subgrain or monoblock structure. The final formation of the structure occurs during annealing,…
This paper presents results of fracture tests on Multilayer Ceramic Capacitors (MLCCs). Fracture mechanical calculations were carried out with ANSYS in order to analyse the experimental values of fracture strength for the tested MLCCs. Subsequent metallographic analyses were used to get a precise picture of the origin…
A non-precious metal catalyst MnHMTA/C to oxygen reduction reaction was prepared by pyrolyzing a precursor from manganese chloride, hexamethylenetetramine and acetylene black in nitrogen gas atmosphere. The effect of heat treatment temperature and flowing of nitrogen gas were investigated. A catalyst with the highest…
Abstract A new tsumcorite-group mineral, nickeltsumcorite, Pb(Ni,Fe3+)2(AsO4)2(H2O,OH)2, the Ni-dominant analogue of tsumcorite and cobalttsumcorite, was found in the oxidation zone of a hydrothermal orebody containing gersdorffite and galena at the Km-3 mine, Lavrion, Attikí Prefecture, Greece. It is associated with…
As the hydrogen-rich gas produced by autothermal reforming from ethanol is utilized for the power generation via fuel cell, the change in amount of ethanol and water fed into the autothermal reformer has significant effects on the control of electricity generation and autothermal reaction temperature. The change of wa…
The electron mobility for the prepared AlGaN/AlN/GaN heterostructure field-effect transistor (HFET) with the ratio of the gate length to the drain-to-source distance being less than 1/2 has been studied by comparing the measured electron mobility with the theoretical value. The measured electron mobility is derived fr…
The efficient/nondestructive electrochemical bubbling delamination method for graphene transfer can alleviate the cost and pollution problems during the traditional metal chemical etching process. In article number 1500492, Lihui Liu and co-workers reveal the screening mechanism of the nonreactive ions in the electrol…
In this work the effects of NaYF4:Yb,Er (NYE) structure on the enhanced red upconversion luminescence (UC) was investigated. α-NYE nanocrystals (NCs) and β-NYE NCs were fabricated by a high temperature decomposition reaction method. The prepared NCs were characterized by X-ray diffraction (XRD), transmission electron…
YVO4: Eu3+ nanocrystal powders (~30 nm) with different doping concentrations were prepared using a precipitation method. Bulky powders (~500 nm) were obtained by annealing the nanopowders at high temperature. The concentration quenching of luminescent centers and energy transfer in YVO4: Eu3+ powders were investigated…
The article presents the results of studies on measuring components of force of diamond burnishing of surfaces with variable radius of curvature. The impact of structural elements of burnishing tools of different types on components of burnishing force was analyzed. The impact of different actuators of burnishing tool…
Ti-50Ni to Ti-55Ni (at.%) can be termed as the pioneer of shape memory alloys (SMA).Intermetallic precipitates play an important role for strengthening.Their influence on the start temperature of the martensitic transformation is a crucial property for the shape memory effect.Efforts for increasing the martensite star…
Awareness on implementing sustainable construction materials has risen significantly leading to increased renewable materials used commercially. Kenaf fibers are potentially used as composite reinforcements and combined with epoxy polymer to produce an advanced engineering material that may offer superior specific sti…
Intermetallic crystal structures offer an enormous structural diversity, with an endless array of structural motifs whose connection to stability and physical properties are often mysterious. Making sense of the often complex crystal structures that arise here, developing a clear structural description, and identifyin…
The influence of the magnetic dipole moment of a non-spherical metal nanoparticle on the scattering of electromagnetic radiation by the particle has been studied in the framework of the kinetic approach. Analytical expressions for the scattering cross-section of spheroidal particles are obtained, and their dependence…