Materials Literature
按标题、摘要、年份、主题和来源检索公开元数据。结果保留作者、摘要、分类与原始来源链接。
Advanced composite materials and technologies, particularly direct manufacturing processes such as resin infusion are becoming the preferred manufacturing choice across the wind turbine industry. Philippe Christou, Technology Manager, EMEA, at Huntsman Advanced Materials looks at the latest developments.
Thermal oxidative decomposition of certain zinc porphyrin and phthalocyanine complexes was studied using an installation for thermal analysis, and kinetic parameters of the thermal oxidation of these compounds were determined. The introduction of peripheral alkyl substituents into porphyrin molecules enhances the macr…
In this study, porous silica (SiO 2 ) film is reinforced with carbon nanotubes (CNTs), which gets homogeneously dispersed in porous SiO 2 gel by ultrasonic stirring. The size of SiO 2 molecules is the same as that of nanotubes, so a fine CNTs/SiO 2 network is formed. Nanoindenters used to test the mechanical propertie…
Copper nitride thin films were deposited on glass substrates by reactive direct current (DC) magnetron sputtering at various N 2 -gas partial pressures and room temperature. X-ray diffraction measurements showed that the films were composed of Cu 3 N crystallites and exhibited a preferential orientation of the [111] d…
In this study, integrated multi-wall carbon nanotube (MWCNT) electrodes were prepared in the holes of glass directly by microwave plasma chemical vapour deposition (MWPCVD). The electrochemical behaviour of catechol at the integrated MWCNT electrodes was investigated. The oxygen plasma treated CNT electrodes had bette…
Three rare earth zirconates (Sm2Zr2O7, Gd2Zr2O7 and Er2Zr2O7) were prepared by solid state reaction. The crystal structure and ionic conductivity of these zirconates were characterized by X-ray diffraction (XRD) and complex impedance spectroscopy. The results show that Sm2Zr2O7 exhibits single-phase pyrochlore structu…
An attempt was made at increasing both toughness and rigidity by simultaneous toughening and reinforcement. Natural fiber-reinforced biodegradable polyester blend composites were prepared from modified and unmodified biodegradable polyesters blends with surface-treated and untreated jute fibers by melt mixing and subs…
The reaction of rare‐earth (RE; Y, Er, and Yb) chloride hydrates in 1,4‐butanediol at 300°C for 2 h gave mixtures of RE(OH) 2 Cl and RE 2 O 3 · x H 2 O, and the products were composed of irregularly shaped particles. A prolonged reaction (10 h) yielded a mixture of RE(OH) 2 Cl and RE 2 O 3 · x H 2 O for Er or Y, but p…
The morphology of fiber structures has been studied and the kinetics of their formation and growth at high homological temperatures upon superplastic deformation of the AMg6 and 1420 aluminum-based alloys containing viscous liquid-phase inclusions at the intercrystalline boundaries has been proposed. It has been found…
The stress evolution of Cu∕Co bilayers and multilayers sputtered onto oxidized Si(100) (SiOx) substrates has been studied by in situ substrate curvature measurements with the thickness of the individual layers ranging from 3 to 10 nm. In order to understand the stress developing during deposition, we investigated the…
Abstract X-ray diffraction shows that ordered interlayer structures form when high-charged Llano vermiculite is reacted with HDTMA-Br or HDTMA-acetate, but the structures differ from those given by low-charged vermiculites. The differences arise in two ways; firstly when both HDTMA + cations and HDTMA-Br (or -acetate)…
Ag/amino-hydrocarbon (Ag/a-C:H:N) nanocomposites' coatings were deposited using RF plasma polymerization/cosputtering techniques with the goal to create multi-functional, biomolecule-adhesive and bacterial-resistant nanocomposites. The influence of Ar/NH3/C2H4 gas mixture and power input was examined using various sur…
Pulsed laser ablation from a rotating graphite target operating both in vacuum (∼10-5 Pa) and in He sustaining gas (∼10 Pa) has been used to grow thin carbon films on Si <100>substrates kept at temperatures from RT to 900 °C. Synchrotron and laboratory X-ray diffraction (XRD), performed at grazing incidence, establish…
The mechanical properties of copper thin films formed by cold-rolling and electroplating were compared using tensile test and nano-indentation. Both the Young's modulus and tensile strength of the films were found to vary drastically depending on the microstructure in the films. The Young's modulus of the cold-rolled…
Effect of sulphuric acid addition on the corrosion behaviour of AISI 304 austenitic stainless steel was investigated in different concentrations of HCl (0.001 – 1.0 M) in methanol using potentiostatic polarization, cyclic anodic polarization and open-circuit potential (OCP) measurements. In methanol-HCl solution, only…
Large numbers of potential application areas for elemental boron and boron-based thin film materials make this subject area a focus of significant scientific and industrial interest. Applications include thermoelectric energy conversion devices, biomedical implants, metalworking tools and automotive components. Boron…
Graphs are frequently used to describe the geometry and also the physicochemical composition of protein active sites. Here, the concept of graph alignment as a novel method for the structural analysis of protein binding pockets is presented. Using inexact graph-matching techniques, one is able to identify both conserv…
Abstract Porous ZnO nanostructures were easily fabricated by annealing and etching of as‐grown ZnO nanorods using an aqueous solution method at low temperature. The density of ZnO nanorods was changed by repetition of coating and drying of zinc acetate hydrate in ethanol. The annealing process is a very critical step…
Switching impulse discharge performance of air gaps at high altitudes, which is a fundamental in the extremely high voltage external insulation design, remains an unsolved key technology across the world. Due to the limited applicable range of “g” parameter method recommended by IEC Publication 60-1(1989), this paper…
Virtual air gaps are created in a transformer core by a change in core permeability in the vicinity of auxiliary windings carrying dc current. A procedure for equivalent air gap length computation is established by performing finite-element analysis to obtain the change in transformer core reluctance. Results obtained…