Materials Literature
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The temperature dependences of the refractive index, n(T), calculated from ellipsometric data during the premartensitic and martensite transitions in a Ni2MnGa ferromagnetic shape memory alloy allow to detect all critical temperatures of the sample. The performed measurements reveal the behavior of a surface layer of…
In order to check the feasibility of various glasses as sealing materials, it is necessary to understand the crystallization kinetics, thermal and structural properties of glasses and their interactions with other components of SOFCs. In the present study, different alkaline earth silicate glasses have been studied fo…
The authors investigated the rheological, mechanical, and crystallization properties of nanocomposites consisting of SiO2 modified by aluminate coupling agent and high-density polyethylene (HDPE). The scanning electron microscope photographs showed that the SiO2 nanoparticles modified by aluminate coupling agent were…
A thermoelectric generation system is examined based on heat transfer analysis when solar heat is taken as the heat source. Under a constant heat flux condition from a solar collector, external load and leg length were numerically optimized to obtain maximum power. The optimal external load is different from the tradi…
Abstract To mimic the function of rose petals, we demonstrate a facile method to fabricate superhydrophobic surfaces that strongly absorb water droplets, even when the surfaces are inverted. The hydrophilic–hydrophobic hybrid surfaces were made from self-organized honeycomb-patterned porous films (i.e., honeycombs) by…
The microstructural evolution behaviors of 18Cr-ODS steel under electron beam irradiation were in-situ investigated in a high resolution transmission electron microscopy (HRTEM). Fe 3 O 4 particle was induced by electron beam irradiation through a series of dynamic procedures including lattice relaxation of the steel…
We have measured the electrical resistivity and Seebeck coefficient of CeTe2-xSbx (x = 0.0, 0.05, 0.1, 0.25, and 0.5) single crystals from 100 K to 300 K along the ab-plane, and we calculated their electronic structures and Fermi surfaces by using the density functional theory approach. The band structures of CeTe2 sh…
Abstract AgPd bimetallic nanoparticles were prepared by the reduction of the salts of Ag+ and Pd2+ ions with NaBH4 in the presence of poly(N-vinyl-2-pyrrolidone) (PVP) in an aqueous solution placed in an ice bath and were characterized with a transmission electron microscope (TEM) equipped with an energy-dispersive X-…
In this paper, we proposed the finite element modeling for short-circuit electromagnetic force analysis of a power transformer. In order to improve the accuracy of analysis, we modeled HV winding and LV winding as similar as those windings of a model transformer. Magnetic vector potential and leakage flux due to the s…
An environmental-friendly electrolyte, which contained an addition of sucrose, was used to prepare an anodized film on AZ31B magnesium alloy under the constant current density of 1 A/dm2 at room temperature. Effects of sucrose on the properties of anodized film were characterized by scanning electron microscopy (SEM),…
Thin films of tin sulphide (SnS) were deposited onto glass substrates using the thermal evaporation method. The substrate temperature, T s was varied in the range, 280–360 °C, keeping other growth parameters constant and the effects on the chemical and physical properties of the layers deposited were investigated. The…
The addition of allylic Grignard reagents to dihydrocarvone gives rise to allyldihydrocarveol P1-P3. The reaction is completely stereoselective. Allyldihydrocarveols P1-P3 are tested as corrosion inhibitors of steel in 1M HCl using weight loss measurements. The results show that the addition of Allyldihydrocarveols de…
We propose an ultrathin metamaterial absorber based on Minkowski fractal frequency selective surface and resistive films, which shows a wide-band polarization insensitive and wide-angle strong absorption. This absorber consists of Minkowski fractal loop structure electric resonator, dielectric substrate and backing co…
The effects of sintering temperature and reoxidation conduction on the positive temperature coefficient of resistivity (PTCR) effect of chip type Ba1.005-xSmxTiO3 (BSMT) ceramics were investigated. The samples were reoxidized at 600°-800°C for 0-3 h in air after being sintered at 1200°-1280°C for 30 min in a reducing…
Abstract It has been demonstrated that sterling silver alloy is a widely used material in the jewelry industry. The anti‐tarnish property is one of the most important properties of this material. In this work, the effect of yttrium on the corrosion resistance, and tarnish resistance properties of sterling silver alloy…
The thermal stability of bismaleimide and epoxy modified novolac-type phenolic resin is investigated. Fourier transform infrared spectroscopy results confirm that the phenolic resin is interacted with bismaleimide and epoxy groups. The thermo gravimetric analysis results indicate that the modified resin exhibits bette…
The introduction of nano-fillers into polyethylene can suppress space charge accumulation. The mechanism of this phenomenon hasn't been understood clearly, and has been explained in two different ways, i.e. an interface behavior that reduces charge injection and a bulk property that affects charge migration. In order…
The history of Thixomolding®, its technology and commercialization are reviewed along with recent evolution of new technology afforded by its metallurgical structure. Since Thixomolding was introduced in the early 1990’s, it has developed to more than 400 Thixomolding machines in the United States, Canada, Japan, Chin…
The compound Bi 24 (CoBi)O 40 has been synthesized using the solid-phase reaction method. The temperature and field dependences of the magnetic moment in the temperature range 4 K < T < 300 K and the temperature dependences of the EPR line width and g -factor at temperatures 80 K < T < 300 K have been investigated. Th…
In this paper, graphene interconnects are analyzed and benchmarked against conventional copper wires, indicating the advantage of using graphene at a short wire length or being driven by a device with a large output resistance. For the first time, a system-level optimization of graphene interconnects is performed for…