Materials Literature
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Phase diagrams were constructed and comprehensive thermodynamic analysis was performed for hydroxypropyl cellulose-water and hydroxypropyl cellulose-ethanol systems with the use of the static sorption, calorimetry, cloud-point, polarization microscopy, and X-ray diffraction analysis techniques and the measurement of t…
The electrical properties of ionic smectic liquid crystal (ISLCs), specifically, (i) oriented and non‐oriented samples of lyotropic ISLC potassium caproate and (ii) oriented samples of thermotropic ISLC cobalt decanoate, are investigated in detail. The electrical conductivity of lyotropic smectic potassium caproate is…
In order to investigate the influence of hydrogen embrittlement on fuel failure under reactivity-initiated accident (RIA) conditions, pulse irradiation experiments were performed with unirradiated fuel rods at the Nuclear Safety Research Reactor (NSRR). Fresh cladding was pre-hydrided so that the other factors of clad…
Views Icon Views Article contents Figures & tables Video Audio Supplementary Data Peer Review Share Icon Share Twitter Facebook Reddit LinkedIn Tools Icon Tools Reprints and Permissions Cite Icon Cite Search Site Citation Seila Selimovic, Sarah M. Maynard, Yue Hu; Aging effects of precipitated silica in poly(dimethyls…
A new approach to development of light-emitting SiO 2 :C layers on Si wafer is demonstrated. Carbon-incorporated silicon oxide was fabricated by three-step procedure: (1) formation of the porous silicon (por-Si) layer by ordinary anodization in HF:ethanol solution; (2) carbonization at 1000 °C in acetylene flow (forma…
A fast, flexible 2D GISAXS simulation method based on the distorted-wave Born approximation (DWBA) has been developed for nanostructured thin films using discrete Fourier transforms of a N × N × N matrix that represents the electron density. By expressing the electron density in matrix form, various models of electron…
Effects of organoclay loading (organophilic modified montmorillonite with octadecylamine) on the processing properties, tensile properties, morphology, thermal stability and water absorption behavior of ethylene vinyl acetate (EVA)/organoclay nanocomposites were studied. Organoclay loading from 2 to 10 phr was used as…
Uniaxial viscosity and sintering stress of pressure filtrated alumina compacts were evaluated from sinter‐forging measurements. At a particular density, significantly higher values of sintering stresses are observed compared with specimens made by uniaxial dry pressing followed by cold isostatic pressing. In addition,…
Nonwoven fabrics for household wipe applications were produced using the hydroentanglement bonding technique. Blends of three types of polyester/viscose fibers and flax/viscose fibers were utilized in this study. The wipes were compared in terms of their physical and mechanical properties, serviceability and durabilit…
The formation of peripentacene during the high-temperature vacuum sublimation of pentacene (P) in the presence of trace amounts of 6,13-dihydropentacene (DHP) has been studied computationally with density functional theory. Computational and kinetic analyses indicate that competing mechanisms involving a series of H a…
Abstract A porous silicon rugate filter was prepared and investigated for its ability to sense ethanol vapors of different concentrations. The structure shows sensitivity to concentrations above 1% in volume up to saturation at room temperature. This sensitivity is in the form of a red shift of the characteristic peak…
The surface tension and the viscosity of the Ni-based superalloy CMSX-4 were measured by the oscillating drop method on electromagnetically levitated specimen under reduced gravity conditions on a parabolic flight. The twenty seconds of reduced gravity available in a single parabola proved sufficient for melting, heat…
The surface-energy-induced secondary recrystallization growth with a specific surface plane can be governed in polycrystalline Fe–Ga alloy doped with sulfur by controlling the segregation of sulfur through conventional rolling and texture annealing. Results that demonstrate the recrystallization, magnetostriction, and…
Undoped and tungsten-doped nonstoichiometric vanadium dioxide films have been prepared by a modified sol-gel process, and the effect of synthesis conditions on the parameters of the metal-semiconductor transition in the films has been studied. In particular, it is shown that the temperature of the metal-semiconductor…
The translucent Mg‐α‐sialon ceramics have been prepared by spark plasma sintering (SPS) α‐Si 3 N 4 powder with AlN and MgO as the additives at 1850°C for 5 min. The sample possesses a uniform, dense microstructure under the rapid densification of SPS process. The translucent Mg‐α‐sialon ceramics achieve the maximum tr…
Alkaline etching of high purity aluminium has been examined using the complementary techniques of scanning electron microscopy and atomic force microscopy. Provision of specific grain orientations, generated by zone melting, has revealed dissolution rates of individual grains which decrease in the order {334}>{225}…
Color separation gratings (CSGs) are designed within the framework of the rigorous electromagnetic theory using a gradient method. The optimality of the scalar-theory-based solutions is estimated. The results of the experimental study of a CSG to separate three wavelengths are presented.
First principles band structure calculations suggest that the preferential occupation of Ni2+ ions on the tetrahedral sites in NiFe2O4 would lead to an enhancement of the exchange integral and subsequently the Néel temperature and magnetization. To this end, we have deposited NiFe2O4 films on MgO substrates by pulsed…
Article Surface forces between cellulose surfaces in cationic polyelectrolyte solutions: The effect of polymer molecular weight and charge density was published on May 1, 2007 in the journal Nordic Pulp & Paper Research Journal (volume 22, issue 2).
The lack of reliability of gliding contacts in highly constrained environments induces manufacturers to develop contactless transmission power systems such as rotary transformers. The following paper proposes an optimal design methodology for rotary transformers supplied from a low-voltage source at high temperatures.…