Materials Literature
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The potential associated with the electrochemical deposition of radionuclides in metallic form from solutions of extremely small concentration is strongly influenced by the choice of the electrode material. In a macroscopic model, the interaction between the microcomponent and the electrode material is described by th…
The aim of this contribution is to answer the question if and how mechanical fabric parameters being components of a formability coefficient as well as mechanical parameters being components of fabric handle influence the fabric drape. Therefore, all these parameters were measured for ten fabrics and correlated with t…
Metallic alloys and ceramic materials are employed in aggressive and hostile environments, ranging from aerospace to energy production, from offshore to biological applications. Today, production requires materials able to survive for a long time at high temperatures, in highly aggressive atmospheres, both from the ch…
The effect of flow velocity on the corrosion rate of carbon steels and stainless steels in wet carbon dioxide (CO2) environments was investigated using a flow loop tester. The velocity-dependent corrosion rate of carbon steels and low-alloy steels without corrosion films obeyed a 0.83th power law. This almost correspo…
Abstract Clay mineralogy and whole-rock chemistry of the borate-bearing layers of the Hisarcik and Esbey mines were examined. The Hisarcik clays occur as laminated or unlaminated clay layers with sharp contacts. Unlaminated layers contain quartz derived from metamorphic rocks and carbonate fragments in a clay matrix,…
First-principles quantum molecular-dynamics simulations of the structure of hydrogenated amorphous carbon, a-C:H, at two densities (2.0 and 2.9 ${\mathrm{g}/\mathrm{c}\mathrm{m}}^{3}$) have been carried out using the Car-Parrinello method. The results for the low-density structure show good agreement with experiment i…
Multilayer coatings consisting of thin silver layers sandwiched between layers of transparent conducting metal oxides were investigated from the view-point of low-resistance electrodes for use in flat panel displays. Optimization of the multilayer coatings resulted in a five-layer coating composed of indium and zinc o…
Orthorhombic crystals of hen egg-white (HEW) lysozyme were grown in a homogeneous and static magnetic field of 10 T. All crystals grown at 10 T were oriented such that their crystallographic c axes were parallel to the magnetic field direction and showed a narrower average full-width at half-maximum (FWHM) of the rock…
GaSe(Cu)/InSe heterojunctions have been formed by bringing the cleavage surface of undoped n-InSe and Cu-doped p-GaSe into direct contact. Transport and phototransport properties are studied by the measurements of capacitance–voltage, current–voltage, and the spectral response of short-circuit current. Moreover, the e…
The structural and electronic properties of iron molybdate (FeMoO 4 ) have been studied using synchrotron-based time-resolved X-ray diffraction (TR-XRD), X-ray absorption near-edge spectroscopy (XANES), and first-principles density functional (DFT-GGA) calculations. The β phase of FeMoO 4 is stable in a large range of…
This paper describes an alternative method for applying the Clausius-Clapeyron equation in a study of the effect of temperature on the superelastic stress in the shape memory alloy Nitinol—a candidate material for many medical devices. including, in particular, endovascular stents. This new analysis will provide some…
We propose a new method for implementing conservative forces in a dissipative particle dynamics (DPD) system. We allow multibody interactions, and use information on the macroscopic equilibrium behaviour of the system. We show that it is then possible to induce a fluid/fluid phase transition, and also that the local s…
Abstract The increase of the elongational viscosity of recycled poly(ethylene terephthalate) (PET) is investigated with the aim of producing closed‐cell foams by means of a cost‐effective reactive extrusion technique. A recycled PET grade containing controlled contamination levels of polyvinyl chloride (PVC) and poyle…
We describe a new numerical procedure for generating dense packings of disks and spheres inside various geometric shapes. We believe that in some of the smaller cases, these packings are in fact optimal. When applied to the previously studied cases of packing $n$ equal disks in a square, the procedure confirms all the…
ADVERTISEMENT RETURN TO ISSUEPREVCommunicationNEXTThermosensitive CyclotriphosphazenesSang Beom Lee, Soo-Chang Song, Jung-Il Jin, and Youn Soo SohnView Author Information Inorganic Chemistry Laboratory Korea Institute of Science and Technology Seoul 130-650, Korea Department of Chemistry, Korea University Seoul 136-70…
This report explores the possibility that heat plays a role in the penetration of cloth ballistic panels by 0.22 caliber projectiles. We postulate that heat is generated by friction between the surface of the projectile and the yarns, between yarns, and between filaments within a yarn in advance of and in the path of…
Magnesium and magnesium - lithium single crystals were stretched in [1120] direction to investigate the deformation behavior by non-basal slips. In the case of magnesium, { 1122} second order pyramidal slip is active in a range from 77K to 293K and the yield stress decreases with increasing temperature in a range from…
The paper presents new experimental data on the synthesis and crystallization of complex oxide films produced by rf sputtering of ceramic targets. The deposition system has threshold states, the transition through which sets off a qualitative modification of its properties. The main feature of this modification is the…
The kinetics of crystallization processes in solids are usually described by the Johnson–Mehl–Avrami equation. One of the most popular methods to test the applicability of this equation is based on a double logarithmic plot of fraction crystallized (α). However, such plot is not very sensitive to small changes in α, a…
An alternative approach for disposal of high-level waste (HLW) is proposed. HLW would be separated into two fractions: (a) the high-heat radionuclides (HHRs), e.g., 90Sr and 137Cs, and (b) the low-heat radionuclides (LHRs), which are all the remaining radionuclides. These two categories of waste would be disposed of s…