Materials Literature
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High Performance Electrode for Medium-Temperature Solid Oxide Fuel Cells: Control of Microstructure of La ( Sr ) CoO3 Cathodes with Highly Dispersed Pt Electrocatalysts , Uchida, Hiroyuki, Arisaka, Shin-ichi, Watanabe, Masahiro
It is very imperative to improve delayed fracture properties of high strength steel, which may enlarge its usage. The published literature shows that the susceptibility to hydrogen embrittlement of a novel 1 500 MPa bainite/martensite dual-phase high strength steel is inferior to that of conventional quench-tempered h…
The purpose of this article is to illustrate how conventional precursors can serve, when used with a drop of imagination, to the synthesis of sophisticated inorganic rings and wheels. The self-condensation of the [M2O2S2]2+ fragments under acido-basic process produces, in the presence or absence of guest species, line…
Novolac/layered silicate nanocomposites were synthesized by condensation polymerization of phenol and formaldehyde catalyzed by H-montmorillonite (H-MMT). Exfoliation of the clay was investigated by X-ray diffraction and transmission electron microscopy (TEM). It turned out that the intra-gallery condensation of pheno…
The sliding friction behavior of boric acid and annealed boron carbide coatings has been investigated by in situ Raman tribometry. Reciprocating sliding tests were performed in air (∼20% relative humidity) at 1 mm/s with a transparent sapphire hemisphere dead weight loaded against the coated substrates. A homebuilt mi…
We report on the functional capabilities of a scanning anode field emission microscope (SAFEM) which combined with a phosphor screen is used to investigate and correlate individual electron emission site characteristics of low threshold thin film electron emitters in the micrometer regime. Spatially recorded extractio…
Sulfur incorporation in diamond was achieved by co-doping using and trimethylboron. Particle induced X-ray emission, X-ray photoelectron spectroscopy, and secondary-ion mass spectroscopy confirmed the presence of sulfur, which was more concentrated in the near-surface region. The films were examined by Mott-Schottky a…
A mathematical model for three-dimensional heat and mass transfer in metal–hydrogen reactor is presented. The model considers three-dimensional complex heat, and mass transfer and chemical reaction in the reactor. The main parameter in hydriding processes is found to be the equilibrium pressure, which strongly depends…
Nickel-implanted boron-doped diamond electrodes (Ni-DIA) were fabricated in view of their application for carbohydrate detection. This electrode produced well-defined and reproducible voltammograms for 1 mM glucose in alkaline media. The electrode exhibited excellent electrochemical stability with low background curre…
To simulate the end-of-life behavior of cladding tubes during the first phase of a LOCA transient, one may assume that the main effect of a long service exposure on the cladding deformation behavior during LOCA arises from the hydrogen uptake associated with the cladding oxidation at high burn-up. Thus, the recent met…
Combinatorial chemistry was applied to the optimization of phosphors for displays. The phosphor is a promising candidate for red field emission display (FED) phosphors. Screening was performed in terms of cathodoluminescence at a low voltage excitation and photoluminescence. We developed a ternary material library of…
The “1 ∶ 1” complex of Ce3+ and α2-[P2W17O61]10− is formed in an equimolar solution of Ce(NO3)3 and K10[P2W17O61], but attempts to isolate a solid yield salts of the 1 ∶ 2 complexes first described by Peacock and Weakley in 1971. With a 3-fold excess of Ce3+ however, a crystalline ammonium salt (anion 1) could be isol…
The aim of this study was to evaluate the effect of various sterilization processes on the physical and mechanical properties of self-reinforced bioabsorbable fibres made out of polylactide (PLLA). The samples were sterilized using plasma, ethylene oxide (one and two cycles), gamma (25 kGy at room temperature, 25 kGy…
The luminescent properties of ZnO nanocrystals doped with divalent manganese and europium ions show efficient broad-band emission at room temperature. These ZnO based quantum confined atoms potentially offer efficient nanophosphors that can be excited in the near UV range for applications in the solid state lighting,…
The high-temperature behaviour of organised mesoporous alumina was investigated using X-ray powder diffraction, nitrogen adsorption isotherms and transmission electron microscopy. Based on the combination of these methods it has been shown that organised mesoporous alumina synthesised using long-chain carboxylic acids…
Changes in the surface composition of chemically treated cellulose fibres obtained from the sheath of banana plants were investigated using electrokinetic (ζ-potential) measurements. Scanning electron microscopy (SEM) was used to observe changes in the surface morphology of the fibres. Spectroscopic methods were also…
Insoluble excipients are added to polymeric film coating solutions and dispersions to improve the physical appearance of dosage forms, enhance the stability of photolytic drugs, and aid in processing. These insoluble additives, however, may significantly affect the physical, mechanical, adhesive, and drug-release prop…
Pd/SiO2 nanosized particles have been synthesized using a reverse micelle technique combined with metal alkoxide hydrolysis and condensation. The size of the particles and the thickness of the coating can be controlled by manipulating the relative rates of the hydrolysis and condensation reaction of tetraethyl orthosi…
A generalized version of the Spherical Infall Model (SIM) is used to study the effect of angular momentum on the final density profile of a spherical structure. The numerical method presented is able to handle a variety of initial density profiles (scale or not scale free) and no assumption of self-similar evolution i…
Burkholderia sacchari IPT101(T) induced the formation of 2-methylcitrate synthase and 2-methylisocitrate lyase when it was cultivated in the presence of propionic acid. The prp locus of B. sacchari IPT101(T) is required for utilization of propionic acid as a sole carbon source and is relevant for incorporation of 3-hy…