Materials Literature
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The macrocluster formation of propionic acid adsorbed onto silica (glass and silicon oxide) surfaces from propionic acid-cyclohexane mixtures has been studied using surface forces measurement, adsorption excess isotherm measurement and Fourier transform infrared spectroscopy (FTIR) in the attenuated total reflection (…
Using potassium chlorate, sulfuric acid and ferrous sulfate as a catalytic oxidation system to oxidize the aryl substituted carbazide to prepare new type bisazo compounds in one phase have been described for the first time in this paper. Eight bisaryl carbodiazones have been synthesized in high yields under mild condi…
L-Lysine derivatives of viologens form supramolecular assemblies of fibers and ribbons in some aromatic solvents, and the charge separation reaction in these self-assembling systems proceeds with a similar efficiency to the MV2+ system.
Electron and Li ion conducting properties of room temperature sputtered amorphous tantalum oxide films were studied in order to evaluate the feasibility of using in electrochromic device applications. The films were investigated using the galvanostatic intermittent titration technique, impedance spectroscopy, and isot…
Poly(3-hydroxy-5-phenylvalerate) [P(3HPV)] was efficiently accumulated from 5-phenylvalerate (5PV) in Pseudomonas putida BM01 in a mineral salts medium containing butyric acid (BA) as the cosubstrate. A novel aromatic copolyester, poly(5 mol% 3-hydroxy-4-phenylbutyrate -co- 95 mol% 3-hydroxy-6-phenylhexanoate) [P(3HPB…
It is well known that the structures of the organisms give some important hints for the material development. To obtain a new idea on the optimum design of the material structures, the fore-wing of Allomyrina dichotoma was used and its mechanical properties and micro structures were investigated. As a result, the non-…
In Situ processing and microstructure of calcium dialuminate (CaAl4O7)-based porous materials have been investigated. Powder mixtures of CaCO3 and α-Al2O3 (1:2 in molar ratio, doped with 0.5mass% LiF), and CaCO3, α-Al2O3, and ZrO2 (2:2:1 with 0.5mass% LiF) were prepared by a high-energy ball-mill process. Reactions of…
Pyrolytic Carbon Deposition on Porous Cathode Tubes and Its Use as an Interlayer for Solid Oxide Fuel Cell Zirconia Electrolyte Fabrication , Basu, Rajendra N., Altin, Orhan, Mayo, Merrilea J., Randall, Clive A., Eser, Semih
An impedance model for the electrochemical dissolution of lithium in alkaline solutions is presented. The construction technique of the impedance function depends on calibration to steady-state properties, described in Part II of this series. The model, which is based on the point defect model for the growth and break…
The successful synthesis of 5,10,15,20-tetrakis[(R,R)-2,6-bis(1-phenylbutoxy)phenyl]porphyrin, with (R)-1-phenylbutoxy substituents on each of the eight ortho-positions, by a 2+2 approach viameso-[(R,R)-2,6-bis(1-phenylbutoxy)phenyl]dipyrromethane rather than a one-pot condensation of (R,R)-2,6-bis(1-phenylbutoxy)benz…
The effects of processing and molecular composition on the morphology and electrical conductivity of melt pressed polyaniline (PANI)/polyolefin blends have been investigated. In all systems, the morphology was found to consist of two distinct phases, a conducting network of PANI embedded within the thermoplastic host.…
Shungite rock material after fine grinding was investigated as a filler for polymeric composites. Shungite carbon structural and physico-chemical peculiarities predetermine shungite filler behaviour in polymeric matrixes. Specific interaction between the network of globules (the main structural units of shungite carbo…
Novel infrared microscopy has been developed to improve the liquid‐immersion method, which is a technique that has been developed by the authors to study the packing structures of powder particles in ceramic green bodies. This paper demonstrates the high potential of the novel technique by presenting clear structures…
The effect of rubberwood on curing characteristics and mechanical properties of epoxidized natural rubber (ENR) was investigated in the loading range of 0 to 50 phr. Results indicate that the scorch and cure times decrease with increasing rubberwood loading. Tensile modulus and hardness of the composites increase with…
PreviousNext No AccessSEG Technical Program Expanded Abstracts 2001Common focus point approach to complex near surface effectsAuthors: C. O. H. HindriksD. J. VerschuurC. O. H. HindriksDelft University of Technology and D. J. VerschuurDelft University of Technologyhttps://doi.org/10.1190/1.1816495 SectionsAboutPDF/ePub…
The preparations and crystal structures of (Ph4P)[Cr(phen)(ox)2](H2O) 1, [Co(phen)2(ox)](BF4) 2 and [Co(phen)2(ox)]I(H2O)2(EtOH)0.53 are described (phen⊕=⊕1,10-phenanthroline, ox⊕=⊕oxalate), and their crystal packing analysed in terms of the crystal supramolecular motifs and multiple aryl embraces. The crystal packing…
Lower operating voltage is one of the main requirements of future generation FRAM. In order to achieve this requirement, PLZT thin film capacitors must be scaled down with respect to thickness. This paper presents the ferroelectric performance of scaled PLZT thin films. The thickness of RF magnetron sputtered PLZT thi…
The sensitivity of mesh spacing on simulations of macrosegregation, particularly ‘freckles’, during vertical directional solidification of a superalloy in a rectangular mold was systematically analyzed to achieve accurate predictions in finite element calculations. It was observed that a coarser mesh spacing in the x-…
The phase transformations in a Ti–10 mass%Zr alloy during continuous cooling and isothermal holding have been investigated mainly by means of hot stage optical microscopy. During cooling from β phase at 100°C/s, α′ plates formed martensitically at temperatures around 180°C together with sharp and coarse surface relief…
Abstract Molecular dynamics simulations of unconstrained alkali halide clusters with 8, 64, 216, 512, 1000, 1728, 2744, 4096, 5832, and 8000 ions have been carried out using the Born–Mayer–Huggins potential. All the clusters exhibit first‐order melting and freezing transitions. The melting temperature increases with t…