Materials Literature
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The article discusses some technical approaches that enable one to obtain the single-loop circulation of metal in induction crucible furnace without the application of complicated and special multiphase power supply sources (multiphase inverters). The results of investigations into electromagnetic and hydrodynamic pro…
By use of synchrotron radiation, powder x-ray diffraction of the superconducting skuttetudites Y T 4 P 12 ( T = Fe, Ru and Os) has been studied at high pressures. The d -values of many diffraction lines decreased monotonically with increasing pressure up to 10 GPa. New diffraction lines did not appear up to 10 GPa alt…
The International Journal of Applied Glass Science (IJAGS) endeavors to be an indispensable source of information dealing with the application of glass science and engineering across the entire materials spectrum.
The emitter shape dependence of an ion current from a gas field ion source was examined using numerical simulations. A tip shape with a nanoscale protrusion on the apex was adopted. The results demonstrated that the effective capture area becomes large, when the shank angle is small. For a He gas temperature of 40K, t…
A metamaterial layer with parameters ɛ and μ close to minus unity (a Veselago lens) is considered. The 2D problem of excitation of this layer by a point source is studied. Under the assumption that the thickness of the layer is much smaller than the wavelength, explicit analytic expressions for the field are obtained.…
A U(VI) complex with N,N '-disalicylidenediethylenetriaminate (saldien 2- ) was characterized by single crystal X-ray analysis and X-ray absorption fine structure (XAFS) spectroscopy, and its electrochemical behavior in a DMSO solution was studied. The obtained U(VI)-saldien 2- complex recrystallized from DMSO was ide…
BACKGROUND/PURPOSE: Magnetic therapy has been popular for ages, but its therapeutic abilities remain to be demonstrated. We aimed to develop a homogeneous, stable dispersion of magnetic nanoparticles in a skin-care preparation, as a tool to analyze the biological and physiological effects of superficial magnetism in s…
The swelling ratio and the pencil hardness of pad were introduced to evaluate the properties of hydrophilic fixed abrasive (FA) pad. The effect of pad composition on its swelling ratio and pencil hardness was studied. Results show that the swelling ratio increases with the rise of content of Trimethylopropane Triacryl…
The recently discovered new Fe-As based spin density wave superconducting systems are shortly reviewed. Mössbauer studies of EuFe 2-x Ni x As 2 (x=0.0 to 0.20) by 57 Fe and 151 Eu isotopes are reported. In pure EuFe 2 As 2 the iron orders magnetically at 200 K, while the Eu orders antiferromagnetically at 18 K. The 4.…
Fe2+ Fe3+ species in layered clay minerals are analysed in samples obtained from two boreholes in Boda Siltstone Formation. In the first series occurrence of Fe2+ components and Fe2+ = > Fe3+ oxidation is demonstrated in upper layers of a strata near to the surface. In the second series minerals are identified with ir…
Plutonium is the element with the greatest number of allotropic phases. Thermally induced transformations between these phases are typically characterized by thermal hysteresis and incomplete phase reversion. With Ga substitutional in the lattice, low symmetry phases are replaced by a higher symmetry phase. However, t…
An in situ tensile rig is proposed, which allows performing electrochemical (repassivation) experiments during dynamic mechanical testing of wires. Utilizing the basic components of a conventional tensile tester, a custom-made minitensile rig was designed and fabricated. The maximal force that can be measured by the f…
An X-ray diffraction study indicates that nonstoichiometric vanadium monoxide VO y ≡ V x O z (y = z/x) has a cubic structure of the DO3 type (space group Fm $$ \bar 3 $$ m), where vanadium atoms are not only at the 4(a) sites of the metal fcc sublattice, but also at the tetrahedral 8(c) sites. This circumstance fundam…
Abstract. The reaction layer microstructure of SiC/SiC joints brazed by Ag-Cu-Ti filler metal, including composition, morphology, grain size were investigated by X-ray diffraction, electronic probe microanalysis, transmission electron microscope. An obvious reaction layer composed of TiC and Ti5Si3 was observed at the…
ZnS films were deposited on porous Si (PS) substrates using a pulsed laser deposition (PLD) technique. White light emission is observed in photoluminescence (PL) spectra, and the white light is the combination of blue and green emission from ZnS and red emission from PS. The white PL spectra are broad, intense in a vi…
The experimental data concerning the effect of hydrogen (300 appm), radiogenic helium, and low-temperature neutron irradiation (77 K) on the properties of the promising austenitic 16Cr15Ni3Mo1Ti and austenitic-martensitic 16Cr9Ni3Mo steels have been reported. It has been found that hydrogen saturation causes an increa…
Employing first-principles methods, based on the density function theory, and using the LANL2DZ basis sets, the ground-state geometric, the stable and the electronic properties of Au n –2 Y 2 clusters are investigated in this paper. Meanwhile, the differences in property among pure gold clusters, pure yttrium clusters…
The II-VI diluted magnetic semiconductors (DMS) with chromium are good candidates for room temperature ferromagnetic semiconductors. We review the theoretical models of sp-d and d-d exchange interactions applicable for semiconductors containing transition metal ions. The unique magnetic properties of Cr based DMS orig…
Shape memory alloys (SMA) are thermo-responsive materials where deformation can be induced and recovered through temperature changes. Therefore, SMA are considered smart materials. In this work, an epoxy beam reinforced by NiTi SMA wires was developed. This active composite contains five pre-trained NiTi SMA wire actu…
Y2Ti2O7 nanocrystals have been prepared at the calcining temperature of 700-900°C by using tetrabutyl titanate as starting materials and citric acid as chelator. The preparation process was monitored by XRD, FT-IR and TG-DTA analysis. Compared with traditional solid state reaction (SSR), the present used methods can p…