Materials Literature
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Abstract Single‐crystal samples of L ‐histidine hydrochloride monohydrate (LHICL), C 6 H 9 N 3 O 2 ·HCl·H 2 O, were studied by Raman spectroscopy at temperatures ranging from 295 to 40 K over the spectral range 20–3400 cm −1 . A tentative assignment of the bands is given. The effect of temperature change on the vibrat…
Pertosylation of hyperbranched polyglycerol (M(n)=2000; M(w)/M(n)=1.3) followed by partial displacement of the tosyl groups with carboxylic acid functionalized NCN-pincer platinum(II) complexes [PtI-2,6-(NMe(2)CH(2))(2)C(6)H(2)-4-COOH], resulted in covalent attachment of the NCN-pincer complexes to the polyglycerol. T…
Three materials proposed for use in fast breeder reactors—FBR grade type 316ss, high chromium type martensitic steel and oxide dispersion strengthened martensitic type steel—were subjected to corrosion tests in stagnant lead-bismuth eutectic (LBE) containing 10-6 wt% of oxygen at 500–650—C for up to 5,000 h. After eac…
In general addition compounds are added to polymers to design composite materials with improved properties and to lower the overall production cost. In this investigation, the influence of adding inorganic mineral fillers on the mechanical properties of nylon-6 is investigated. One or combination of more than one fill…
Abstract The alkali‐metal‐directed hydrolysis of phenyltrialkoxysilanes, PhSi(OR) 3 (R = Me, Et, n Bu), was performed under various reaction conditions. The alkali metal ions were used both as templating entities and as structural elements. The crystalline sodium and potassium phenylsiloxanolates (Na‐PhS and K‐PhS) we…
Abstract Summary: The aim of this study is to examine the effect of the compounding apparatus and of processing conditions on the properties of an organoclay‐poly[ethylene‐ co ‐(vinyl acetate)] (EVA) nanocomposite. The filled materials were prepared using either a discontinuous batch mixer, a single screw extruder, a…
Abstract The prospects for future applications of cellulose acetate (CA) and cellulose esters (CE) were assessed via an analysis of literature data. An examination of more than 50,000 citations in the published literature with relevance to CA and CE has shown that, while the R&D effort continues without discernibl…
The effect of B 2 O 3 addition on the thermal stability of BaO–P 2 O 5 glasses is studied by differential thermal analysis (DTA), X‐ray diffraction (XRD) analysis, scanning electron microscopy, and micro‐Raman spectroscopy. The difference between glass‐transition and onset‐crystallization temperatures increases monoto…
We review current models and propose new approaches for the production of silicon thin films by low temperature plasma processes. Growth models have often been borrowed from those developed for hydrogenated amorphous silicon and are based on surface diffusion of SiH3. However, in situ growth studies have also pointed…
The Fugen Nuclear Power Station (NPS) was shut down permanently in March 2003, and preparatory activities are underway to decommission the Fugen NPS. An engineering system to support the decommissioning is being developed to create a dismantling plan using state-of-the-art software such as 3-dimensional computer aided…
Abstract A series of new M[(dcbdt) 2 ] − z complexes of the dicyanobenzodithiolate (dcbdt) ligand with a range of transition metals (M = Co, Pd, Pt, Cu, Au and Zn) in different oxidation states ( z = 0.4, 1, 2) were prepared as their n Bu 4 N salts and characterised by X‐ray diffraction, cyclic voltammetry, EPR and st…
Abstract Summary: An ordered nanoporous monolith was prepared from a poly(isoprene‐ b ‐dimethylsiloxane) (PI‐PDMS) hexagonally packed cylinder precursor. The PDMS cylinders were macroscopically aligned, the PI was crosslinked with dicumyl peroxide, and the PDMS was removed using tetrabutylammonium fluoride. The stabil…
In this paper, the method for modeling laminated core by a solid one is investigated. The method for taking into account eddy current in each steel plate used for laminating, which has already been developed in linear analysis, is expanded to nonlinear analysis by using one-dimensional finite-element analysis and the…
The purpose of this paper is to specify the main components of the stray load loss of induction motors from both results of measurement and analysis. The IEEE standard 112 Method B is applied to the cage induction motor for the measurement of the stray load loss. On the other hand, the losses generated at the stator c…
The electron-density functional method (in the gradient approximation) and the pseudopotential method are used to study the mechanism of ionic conductivity in the cubic phase of zirconia stabilized with magnesium or yttrium. The oxygen-ion migration in the stabilized zirconia is shown to be a two-stage process, which…
Abstract This paper presents the development of a hybrid solid-microcellular co-injection molding process that combines aesthetic and processing advantages of injection molding with benefits and property attributes of microcellular plastics (MCPs). A two-color injection molding machine has been modified and equipped w…
New golden, yellow-colored cerium chemical conversion coatings on aluminum alloy 2024-T3 (AA2024-T3 [UNS A92024]) surface at room temperature were obtained by immersing the alloy into a cerium solution containing zinc chloride (ZnCl2) and hydrogen peroxide (H2O2). Electrochemical methods and immersion tests were used…
Abstract Summary: A poly(aspartic acid)‐ block ‐polylactide (PAsp‐ block ‐PLA) diblock copolymer was synthesized through the polymerization of β ‐benzyl‐ L ‐aspartate‐ N ‐carboxyanhydride [Asp(OBzl)‐NCA] with amino‐terminating polylactide (NH 2 ‐PLA) as a macroinitiator. The chain length of the PAsp segment could be e…
It is necessary to use a crosslinking agent to bond a flameretarding hydroxy-functional organophosphorus oligomer (FR) to cotton so that the flame resistance of the treated cotton fabric can be durable to multiple homelaundering. Both dimethyloldihydroxyethyleneurea (DMDHEU) and melamine– formaldehyde (M-F) have been…
Polycrystalline n-ZnO/p-Cu2O heterojunctions were fabricated by reactive sputtering for photovoltaic applications. Although electrical rectification was not reproducibly obtained in the as-grown samples, rectification was observed in the samples fabricated with cyanide treated Cu2O. We have previously shown that cyani…