Materials Literature
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Abstract The heat outputs of higher burn up spent fuels (SF) create problems for disposal in mined repositories, including needs for reduced container loadings and extended pre-disposal cooling. An alternative that is less temperature sensitive is deep borehole disposal (DBD) which offers safety, cost, security and ot…
The molecular compound [Fe$_{2}$($\mu_{2}$-oxo)(C$_{3}$H$_{4}$N$_{2}$)$_{6}$(C$_{2}$O$_{4}$)$_{2}$] was designed and synthesized for the first time and its structure was determined using single-crystal X-ray diffraction. The magnetic susceptibility of this compound was measured from 2 to 300 K. The analysis of the sus…
Surface NH 2 -functionalized SBA-15 mesoporous silica was synthesized using toluene diisocyanate (TDI) as a bridge molecule. First, the surface Si-OH groups of SBA-15 were reacted with the -NCO groups of TDI. Then, the remaining unreacted -NCO groups of TDI were reacted with the -NH 2 groups of ethylenediamine (EDA).…
In this work, we present preferred (004) texturing of sputter deposited titanium dioxide (TiO2) films on glass substrates as a consequence of Nd doping at very slow growth rate. Nd concentration was varied from 0.0 to 2.0 atomic percent (at. %) in TiO2 thin films deposited under identical growth conditions, i.e., the…
This index covers all technical items - papers, correspondence, reviews, etc. - that appeared in this periodical during the year, and items from previous years that were commented upon or corrected in this year. Departments and other items may also be covered if they have been judged to have archival value. The Author…
Currently there is an increasing interest in application of natural clay minerals in production of various products, including sorbents for waste water treatment. For practical application of clay as a sorbent, it is significant not only to establish its properties, but also to be able to modify them. Only during the…
Zinc oxide thin films were prepared at room temperature in pure argon ambient on glass substrates by RF magnetron sputtering. The effect of sputtering power (50~250 Watt) on the structural properties of the film were investigated. The thickness of ZnO thin films was measured using surface profiler (Dektak 150+). Atomi…
This paper presents the moisture absorption and shock cushioning properties of flexible polyurethane foams (PU) filled with saw dust fibers at 10, 15 and 20wt%. The compositeswere fabricated using open molded method from a two-part liquid foamsystem consisting of part-A (Isocyanate) and part-B (Polyol).The diffusion r…
The color of Tasar silk yarns is determined by a number of production factors, any slight variation in any one of these factors lead to variation in color of the yarn produced. At the present production technology, it is difficult to produce yarns of uniform color at the producers' level, but once produced, those yarn…
This paper investigated the mechanical properties of rubber-toughened epoxy resins reinforced with multi-walled carbon nanotubes (MWCNTs). Rubber-toughened epoxy resins were prepared using the mechanical stirring method and molded into samples with compression molding with different amount of MWCNTs (0.5wt%–3wt%). The…
The surface of magnesium hydroxide (MH) was modified with stearic acid (SA). The modification mechanism was analyzed using a scanning electron microscope, thermogravimetric analysis, differential scanning calorimetry, and Fourier transform infrared spectroscopy. The results showed that an esterification reaction occur…
Using poly (ethylene oxide)-poly(propylene oxide)-poly(ethylene oxide) triblock copolymer (P123) as template and tetraethyl orthosilicate as silica source, well-ordered cross-linked bimodal mesoporous SBA-15 was easily prepared via an one-pot synthetic strategy, where a pre-self-assembly of P123 with TEOS in strong ac…
The formation of water tree in XLPE insulation material was inhibited by adding EAA(Ethylene Acrylic Acid),DBS(dibenzylidene sorbitol) into cross-linked polyethylene-based materials. The mixture was crosslinked through mixing and tabletting the blend at 160 degrees. The effect of additive content on the length of the…
The electronic structure, chemical bonding and elastic properties of Ti3AC2 (A=Al, Si, Sn) were investigated by generalized gradient approximation (GGA) based on density functional theory (DFT). The calculated lattice parameters and equilibrium volumes are in good agreement with the available experimental data. The de…
Heated-mould continuous casting (Ohno continuous casting, OCC) is a kind of special continuous directional solidification technique in copper manufacturing system. Copper rod solidification process is cooperative controlled by heated mould and water cooler. Single crystal metal rod of any length can be produced by OCC…
The anodic polarization curves of 2Cr13 stainless steel with various RE contents in 3.5% NaCl neutral solutions have been measured by electrochemical methods. The effect of Ce on pitting corrosion resistance of 2Cr13 stainless steel has been studied by the metallographic examination. The results show that sulfide and…
Abstract The paper presents a new numerical model of solidification processes in hypoeutectic alloys. The model combines stochastic elements, such as e.g. random nucleation sites and orientation of dendritic grains, as well as deterministic methods e.g. to compute velocity of dendritic tips and eutectic grains. The mo…
Poly (lactic acid) was solvent-blended and formed as thin ribbons with different weight fraction of hydroxyapatite, namely 5, 10 and 20wt%. In-vitro biodegradability of biocomposites was performed in phosphate buffer solution (PBS) at 37°C. The presence of hydroxyapatite tended to increase biodegradability of poly (la…
Crystallization is a universal phenomenon in modern industry and has been developed into a core discipline. Investigation of the crystal formation has also increasingly become a vital subject in the field of materials science and technology. The crystal shape may be successfully varied by controlling its crystallizati…
In this work we study the effect of the excitation of surface plasmons in a metallic cylindrical nanorod by a suddenly created electron-hole pair, using a classical model for the emerging electron and a quantum-mechanical model for the plasmon field in the cylinder. The electron and the hole interact independently wit…