Materials Literature
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Summary Attempts were made to introduce four major fission products, namely, Cs, Sr, Ru and Te into thermodynamically stable NaZr 2 P 3 O 12 (NZP) ceramic, considered to be a viable alternative for fixation of high level nuclear waste (HLW), in place of borosilicate glass. The results showed that all these elements co…
Corona discharge mechanism based on corona current pulse characteristics from a metallic floating particle was investigated in SF6gas under DC voltage as a basis for clearly understanding of corona discharge mechanism in SF6gas gap with floating particle under AC voltage. Corona behavior and breakdown voltage were inv…
The paper presents results of the shear viscosity measurements performed on diluted binary mixtures of mesogenic solvent n-hexylcyanobiphenyl (C 6 H 13 PhPhCN, 6CB) and two non-mesogenic admixtures: (i) n-heptylcyanophenyl (C7H15PhCN, 7CP), composed of the molecules of the same polarity as the solvent molecules but of…
The main methods of calculation of the inelastic mean free path (IMFP), λ, of inelastically-scattered electrons versus their energy E0 are reviewed. Mechanisms, which influence on the character of λ(E_{0})-dependence of IMFP, are considered for electron–electron scattering within the framework of the free electron-gas…
It is well known that the presence of dissolved hydrogen in cast steel can cause defects that appear in hot rolling and forging of steel parts with heavy sections, and also contributes to the formation of internal cracks and blowholes during the solidification of the liquid steel. These problems are especially importa…
Chemical reaction between nitric oxide (NO) andzero valent iron (ZVI) was studied in a packed-bed column process with high temperatures based on ZVI strong reducing abilities. For six controlled temperatures of 523-773 K and 400 ppm of NO (typical flue gas temperature and concentration), under short empty bed contactt…
Voltammetric techniques have been introduced to monitor the formation of gold nanoparticles produced via the reaction of the amino acid glycyl-L-tyrosine with Au(III) (bromoaurate) in 0.05 M KOH conditions. The alkaline conditions facilitate amino acid binding to Au(III), inhibit the rate of reduction to Au(0), and pr…
The Raman effect, by which light is frequency shifted by a vibrational mode, enters into a number of phenomena in nonlinear optics. Here, we summarize our progress in identifying glass materials with potentially useful Raman properties, methods for measuring the strength of the Raman effect and its spectral dependence…
Nonisothermal crystallization kinetics of polypropylene (PP)/Ca3(PO4)2 composites was studied using differential scanning calorimetry (DSC) for various nanosizes by employing Avrami and Ozawa's combined analysis. Parameters such as Avrami's exponent (n) and composite growth rate constant (Zt) were determined, which ch…
The application of the chemical cleaning process to dissolve and remove scales and sludge by chemicals is being planned at the Japanese pressurized water reactor (PWR) plant in order to maintain a designed heat transfer condition and to prevent the steam generator (SG) tube degradation. In this paper, the affects of t…
Blend rubber films were prepared by mixing styrene grafted rubber latex and natural rubber latex (NRL) with varying proportions by gamma radiation from Co-60 source at room temperature. Tensile strength, modulus at 500% elongation, elongation at break, permanent set, and swelling ratio were measured. Tensile strength…
Abstract Environmental dredging creates challenges in finding areas to construct confined disposal facilities and typically results in residual contamination. In situ capping (either in place of dredging or for capping residual contaminants) can be limited by concerns regarding navigation, uniform cap placement, bioin…
This paper introduces the use of a scanning electron microscope (SEM) to evaluate the insulation property of wide band gap insulators. An SEM may be used not only to observe a surface image but also to provide a fine electron beam for charging an uncoated-insulator surface at once. The charging can create an electric…
We have spin coated silica gel films of ∼10μm onto porous silicon (PS) substrates with photoluminescence (PL) emissions peaks in the 600–700nm spectral range, producing a 20-fold enhancement of the original intensity in the shorter wavelength end. We attribute this enhancement to the reduced nonradiative recombination…
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Aiming at the problem that silicone rubber (SIR) is used in different environmental areas in China, present paper reports the hydrophobicity transference of SIR affected by pollutions and environmental factors. Kieselguhr and kaolin were used as artificial pollutions, and then the hydrophobicity of SIR was found to be…
Abstract Domain size of 10% dispersed polystyrene in polyethylene was followed in a 34‐mm intermeshing counter‐rotating twin screw extruder. Variables studied included the effects of barrel temperature, screw speed, viscosity ratio of dispersed‐to‐continuous phase, and parallel melt versus preblended solids feeds. Aft…
Purpose The purpose is to present a new approach for studying the phenomenon of traveling bubble cavitation. Design/methodology/approach A flow around a rigid, 2D hydrofoil (NACA‐0012) with a smooth surface is analyzed computationally. The Rayleigh‐Plesset equation is numerically integrated to simulate the growth and…
Abstract The stopping power rises in symmetric sandwiches with increasing explosive layer thickness, which is equivalent to higher plate velocities. Further the additional weight is a burden for add‐on armor. Therefore a study was made with very thin sandwich plates of 1 mm as more or less the minimum, what can be use…
We fabricated a switchable phase grating utilizing a ferroelectric liquid crystal (FLC) mixed with a photocurable liquid crystal using a simple one-step process, i.e., photoirradiation to a uniformly aligned FLC cell through a photomask. A fast response of the order of 1ms was demonstrated for the switching process be…