Materials Literature
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Thermodynamic analysis of aluminum-containing Fe-Co melts is performed. The equilibrium constants of the deoxidation of iron-cobalt melts with aluminum, the activity coefficients during infinite dilution, and the interaction parameters in melts with various compositions are determined. The oxygen solubility in the mel…
PVDF polymer is well known with its high strength, toughness and piezoelectric properties. It is commonly used in film form for sensor applications, mechanical actuators, energy harvesters, artificial muscles, and membranes. PVDF polymer is also used as hollow fiber membranes in filtration applications, such as nanofi…
Abstract A novel crystalline organic–inorganic hybrid material KCS-2 was successfully synthesized using an organically bridged silane. KCS-2 seems to have a large micropore opening (ca. 10 Å) and a large adsorption capacity for benzene molecules. This material can be utilized as a host material that can stably incorpo…
Abstract We review the present status and future prospects of fast ignition (FI) research of the theoretical group at the IAPCM (Institute of Applied Physics and Computational Mathematics, Beijing) as a part of the inertial confinement fusion project. Since the approval of the FI project at the IAPCM, we have devoted…
The study covers the effect of nanocarbon black particles (N220) on some important mechanical properties of epoxy reinforced with it [carbon black nanoparticles]. The nanocomposites were prepared with (1 to 10 wt. %) of carbon black nanoparticles using ultrasonic wave bath machine dispersion method. The results had sh…
TiO2 nanoparticles have been shown to have wide applications in multiple fields. The combining of polymer and TiO2 nanoparticles to form films or hydrogel materials has further advantages such as reusable, non-aggregated, recyclable and good dispersible. Although the chitosan particles can be easily obtained by crossl…
Complexes of Np(V) with 1,10-phenanthroline-2,9-dicarboxylic acid, C12H6N2(COOH)2 (H2PDA), of the compositions [(NpO2)2(PDA)(H2O)3]·H2O (I), (NH4)2[NpO2(PDA)]2·3H2O (II), and [C(NH2)3]2[NpO2·(PDA)]2·4H2O (III) were synthesized. The Np atoms in the crystal lattices of all the compounds have the pentagonal bipyramidal c…
A theoretical and experimental analysis of the influence of the dispersed transition layer between a coating and a substrate on the development of deformation structures near the interface has been performed as part of an interdisciplinary study of the deformation and fracture of coating-substrate compositions under c…
A new type of intelligent PCM functional textile has been developed based on intelligent phase change material and advanced textile manufacturing technology. The application of such PCM textile in sports wear can help to enhance athletes performance. This paper analyzes the effects of intelligent PCM textile, characte…
Abstract Friction welding is a solid-state joining process which is applied extensively because of its advantages such as low heat input, efficient application, ease in manufacturing, and environmental friendliness. The present study investigates the mechanical and metallurgical properties of UNS S32205 duplex stainle…
The austenite formation under isochronal conditions in Nb microalloyed low carbon steel was studied by means of dilatometric analysis and the data was adjusted to the Johnson-Mehl-Avrami-Kolmogorov (JMAK) equation, for different heating rates and for three initial microstructures. It was shown that the kinetics of aus…
On Load Tap Changer (OLTC) is one of the important and most expensive sub-components in a power transformer. The fail operation of OLTC can cause catastrophic failure of in-service power transformers. Proper and adequate maintenance conducted on serviced aged OLTC can reduce the unexpected unavailability and failure r…
This article studied the a-Si:H solar cell with a randomly rough surface for high-power conversion efficiency. Both experimental result and simulation modeling are presented. A full three dimensional numerical modeling program including finite difference time domain for optics and Poisson and drift-diffusion solver fo…
The quantum anomalous Hall (QAH) effect in a topological insulator thin film is investigated theoretically by using the nonequilibrium Green function method. We use the tight-binding model of a six-terminal topological thin-film Hall bar and focus on the effects of magnetic disorder and electron-hole asymmetry. In the…
To study the impacts of structural change of SiO2 aerogel on its insulating properties, the samples were treated in long time (0-12h) at 500°C, 600°C, 700°C and 800°C. The results show that with the time increased, the shrink extends in thickness, the weight loss and the density is basically unchanged under the 500°Ca…
Power Quality (PQ) evaluation for electric power system waveforms is realised using the harmonic analysis. The definitions of power-quality indices (PQIs) contained in the standards are based on the Fast Fourier Transform, which provides only an amplitude-frequency spectrum loosing time-related information. This paper…
We proposed a novel process for improving cubic boron nitride (c-BN) film properties coated on Si substrates, using a magnetically enhanced plasma ion plating (MEP-IP) method. The method has two features: 1) To realize a stable anode current, the deposition of an insulating BN film on the anode electrode was controlle…
A series of dealuminated Y-zeolites impregnated by 0.5 wt% Pt catalysts promoted by different amounts of Ni, Pd or Cr (0.3 and 0.6 wt%) were prepared and characterized as hydrocracking catalysts. The physicochemical and structural characterization of the solid catalysts were investigated and reported through N2 physis…
A low-profile frequency selective surface (FSS) exhibiting effective shielding over a large bandwidth is presented. The FSS unit-cell consists of a cross-dipole and a ring printed over the opposite surfaces of a low-cost FR-4 substrate. The design demonstrates a wide 7.5 GHz stopband and provides necessary shielding i…
Rainflow algorithms are one of the best counting methods used in fatigue and failure analysis popularly used in semiconductor lifetime estimation models. However, the rainflow algorithm used in power semiconductor reliability does not consider the time dependent mean temperature calculation. The equivalent temperature…