Materials Literature
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The distribution of the β-phase crystals of polypropylene (PP) in different zones of compression and injection moldings molded from PP-based dynamically vulcanized thermoplastic elastomer (TPV) in the presence of a β-nucleating agent (β-NA) was investigated. The influence of shear and cooling conditions and the additi…
Abstract In order to improve the cycling stability of AB 5 type alloy electrodes, rapid quenching technology and new alloy composition design were employed. A hydrogen storage alloy with nominal composition La 0.6 Ce 0.4 Ni 3.6 Co 0.65 Mn 0.4 Al 0.2 Ti 0.05 (FeB) 0.1 was prepared by vacuum magnetic levitation melting…
This paper is an extension of our previous experimental results to the numerical prediction of the dissociation process relative to cellulase enzymes with increasing temperatures. We have computed the quantities of interest, that is, the pair correlation and bridge functions, using integral equation theory with an app…
The aim of the investigations is to carry out the energy evaluation of a micropower thermoelectric generator with natural heat transfer fluid circulation and low temperature difference. For the purpose of the investigations thermoelectric elements with the total area of 0.0096 m2 were used. The thermoelectric elements…
The two dimensional magneto static problems are calculated using finite element method. The 6 non–silent pole inductorconstruction and coil current produced magnetic field is investigated. The step of time moments of symmetrical three–phase currentsystem is 0.001s. and the computation is performed for the time range 0…
In this work we analyze the plasticity, damage, and fracture characteristics of three different processed aluminum alloys (rolled 5083-H13, cast A356-T6, and extruded 6061-T6) under varying stress states (tension, compression, and torsion) and strain rates (0.001/, 1/s., and 1000/s). The stress state difference had mo…
The asymmetric unit of the title compound, {[CoEr(2)(C(5)H(2)N(2)O(4))(2)(SO(4))(2)(H(2)O)(4)]·H(2)O}(n), contains a Co(II) ion, two Er(III) ions, two imidazole-4,5-dicarboxyl-ate (imdc) ligands, two SO(4) (2-) anions, four coordinated water mol-ecules and one uncoordinated water mol-ecule. The Co(II) ion is six-coord…
Abstract From the standpoint of designing microporous frameworks with desired pore diameter and dimensionality, and, especially, the optimization of crystal habit, the crystal engineering of new zeolites must be based on concepts/procedures different from those appropriate for the design of organic crystals. This is b…
Abstract The effect of Ti content on the hydrogen storage properties of Zr 1− x Ti x Mn 2 Ce 0.015 ( x = 0, 0.2, 0.3, 0.5) alloys was studied by X‐ray diffraction, scanning electron microscopy and pressure‐composition ( p‐c ) isotherm measurement. All of the alloys mainly consist of C14‐type Laves and CeO2 phases. As…
Purification and matrix-assisted refolding of recombinant His-tagged polyhydroxyalkanoate (PhaZ) depolymerase from Pseudomonas putida KT2442 was carried out. His-tagged enzyme was overproduced as inclusion bodies in recombinant E. coli M15 (pREP4, pPAZ3), which were denatured by 8 M urea, immobilized on Ni(2+)-nitrilo…
High voltage power autotransformer is one of the strongest sources of the electric and magnetic fields in the electrical power systems. The autotransformer with surroundings was modelled using finite element method for evaluate magnetic and electric fields distribution around it. The modelling results show that magnet…
Abstract The main aim of this paper is to discuss the confinement effects on the optical and acoustic phonon vibrational modes in gallium phosphide (GaP) nanoparticles (cylindric grain). The Raman scattering from the GaP nanoparticles was investigated. It was found that the red‐shifts of the longitudinal optical (LO)…
Abstract The 773 K isothermal section of the La‐Fe‐Sn ternary system was investigated and constructed by X‐ray powder diffraction (XRD). The existence of two reported ternary intermetallic compounds, La 6 Fe 13 Sn and La 3 FeSn 6 , is confirmed in this work. Compared with other R‐Fe‐Sn phase diagrams (R = Pr and Sm),…
Poly(trimethylene terephthalate) (PTT)/poly(ethylene-octene) POE-g-MA/organoclay ternary nanocomposites were prepared using melt blending in order to simultaneously improve the toughness and stiffness of PTT. The phase morphology and dispersion of organoclay were characterized by scanning electron microscope (SEM), X-…
Composites based on high density polyethylene (HDPE), ethylene propylene diene monomer (EPDM) and organophilic montmorillonite (OMMT) clays were prepared by melt compounding followed by compression molding. The addition of clay as well as compatibilizer agent (maleic anhydride polyethylene (MAPE)) considerably improve…
Calculated operating parameters for a novel design of a reed switch (based on cantilevered nanotubes filled with magnetic endofullerenes) show the feasibility of room-temperature operation at 100mV applied voltage.
We wish to report the discovery of a new and unexpected polymorph of dicesium tetracyanoplatinate. Short, linear chains of five platinum atoms (platinum “needles”) appear in a zigzag arrangement, interspersed by isolated tetracyanoplatinate ions.
The interactions of cyanide species with a copper (001) surface were studied with temperature programmed desorption (TPD) and X-ray photoelectron spectroscopy (XPS). Adsorbed cyanide species (CN(a)) undergo recombinative desorption evolving molecular cyanogen (C(2)N(2)). As the adsorbed CN species charge upon adsorpti…
Based on a simple molecular model, a mechanism of rubber flow characterized by viscosity increasing with the reversible rubber-like deformation is proposed. It is associated with an activation energy of viscous flow that increases proportionally to an external stress due to the entropy elasticity of macromolecules. Th…
Abstract A composite layer was prepared on the surface of Ti‐6Al‐4V alloy by nitriding‐sulfurizing composite treatment, and its microstructure and phase structure were examined by scanning electron microscopy (SEM) and X‐ray diffraction (XRD), respectively. The tribological performance was measured to investigate its…