Materials Literature
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High-resolution X-ray diffraction and polarized neutron diffraction experiments have been performed on the Y-semiquinonate complex, Y(HBPz3)2(DTBSQ), in order to determine the charge and spin densities in the paramagnetic ground state, S = (1/2). The aim of these combined studies is to bring new insights to the antife…
Purpose This paper reports on the development of a method for the prediction of clothing pressure of girdles on the human body. Design/methodology/approach In this paper, we propose to use a standard mannequin dummy to measure the clothing pressure of girdles and from which to predict the pressure on the different hum…
A selected series of mono- and multi- V-substituted derivatives of Dawson type structure were synthesized and characterized with the aim of exploring their electrochemistry and their electrocatalytic abilities. The focus was placed on the electrochemistry of [P 2 V 2 W 16 O 62 ] 8- as a representative example. The red…
Here, we report a novel route to prepare bioreactive surfaces on gold by the self-assembly of generation-three hydroxyl-terminated dendron thiols (G3-OH) and subsequent bridging reactions using generation-two amine-terminated dendrimers (G2-NH(2)). It has been shown that G3-OH dendron thiols form a stable and uniform…
The interface of ARMCO iron during electrochemical machining (ECM) was investigated by microelectrochemical techniques. The results lead to a duplex layer structure model, a solid oxide film, and a supersaturated viscous layer. The consequences on pulsed ECM, especially on the important parameters such as pulse/pause…
We synthesized hexagonal $\mathrm{Y}\mathrm{Mn}{\mathrm{O}}_{3}$ doped with Ti ions and investigated the crystal structure by means of transmission electron microscopy. Superlattice reflection spots with a modulation wave vector $q=\frac{1}{3}{c}^{*}$ appeared for the Ti-doped $\mathrm{Y}\mathrm{Mn}{\mathrm{O}}_{3}$.…
We report postgrowth micro-Raman stress imaging of cracks in (111) homoepitaxial diamond films. Undoped and phosphorous-doped diamond thin films grown by microwave plasma-enhanced chemical-vapor deposition on Ib (111)-oriented diamond substrates have been studied by confocal micro-Raman spectroscopy. For comparison pu…
The changes in the free-carrier concentration in polycrystalline ZnO films during exposure to H2 and O2 plasmas were studied using in situ attenuated total reflection Fourier transform infrared spectroscopy. The carrier concentration and mobility were extracted from the free-carrier absorption in the infrared using a…
Abstract The scope of this article is the study of peroxide curing of two nitrile rubbers with low and high nitrile content. The peroxide efficiency can be much higher than one, and the polymer structure determines the mechanism of cross‐linking. In the rubber with low nitrile content, the peroxide radical may give ri…
Iron-ion-doped barium titanate (BaTiO3) nanoparticles have been synthesized through a chemical route using polyvinyl alcohol. The polymer serves as a surfactant to encapsulate the cationic species in divided groups during the reaction that confines the size and morphology of the specimen. The concentration of Fe3+ var…
Abstract A comparative study was performed of fly ash and nano‐CaCO 3 as fillers in polybutadiene rubber with 0, 4, 8 and 12% fly ash and nano‐CaCO 3 . Uniform sheets were prepared of well‐compounded rubber. Nano‐CaCO 3 was synthesized by in situ deposition. The CaCO 3 nanoparticles as reinforcing agents improved the…
Nanometer light source: Interaction between high-affinity binding sites on lipid-coated nanocrystals (NCs) and different proteins enables the controlled formation of supramolecular nanostructures on micropatterned surfaces (see picture; FRET=fluorescence resonant energy transfer, NTA=nitrilotriacetic acid, His6=hexahi…
Using a version of density-functional theory which combines Onsager approximation and fundamental-measure theory for spatially nonuniform phases, we have studied the phase diagram of freely rotating hard rectangles and hard discorectangles. We find profound differences in the phase behavior of these models, which can…
The immobilization of cell-adhesive proteins onto titanium implants improves biological response at the implant-tissue interface. Previous studies demonstrated the easy and direct attachment of fibronectin onto titanium with the use of a 2,2,2-trifluoroethanesulfonyl chloride (tresyl chloride) activation technique. Th…
A new additional melting peak is formed on the DSC thermogram as a result of preexpansion of poly(propylene- co -ethylene- co -1-butene) (terpolymer). The new melting peak appears at ∼152 °C, which is ∼12 °C higher than the tail end temperature (offset temperature) of the pristine terpolymer to exhibit a double meltin…
In this work, we propose an improvement of the classical Derjaguin-Broekhoff-de Boer (DBdB) theory for capillary condensation/evaporation in mesoporous systems. The primary idea of this improvement is to employ the Gibbs-Tolman-Koenig-Buff equation to predict the surface tension changes in mesopores. In addition, the…
Carbon–nickel nanocomposite thin films were prepared by ion beam cosputtering a graphite target having a nickel chip attached to its surface. The amount of Ni incorporated in the films was controlled by the size of the Ni chip (from 5to22wt%), and measured by in situ x-ray photoelectron spectroscopy (XPS). High-resolu…
Abstract Inorganic geopolymer potassium aluminosilicate was prepared at room temperature by the reaction of kaolin, potassium silicate, and potassium hydroxide solution and was dispersed in situ into an epoxy matrix by various proportions to fabricate novel inorganic–organic hybrid geopolymer composites. The formation…
The optical and electrical properties of semiconductor nanoparticles are strongly dependent on their size. A flexible control of the size of the nanoparticles is of interest for tuning their properties for different applications. Here we use a coupled method to control the size of CdS nanoparticles. The method involve…
The calculation of two-theta x-ray diffraction profiles for multimillion atom computer generated nanocrystalline (nc) $\mathrm{Ni}$ systems is presented. Peak profile analysis is performed using a standard Williamson-Hall analysis. The derived mean grain size and root-mean-square inhomogeneous strain quantities are co…