Materials Literature
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The specifics of electrochemical lithium intercalation into nanocrystalline ceria were studied. The lithium capacity of CeO2 − x is discovered to increase systematically as the nanoparticle size shifts down, indicating the potential of nanocrystalline ceria for use in electrochromic applications.
Extended abstract of a paper presented at Microscopy and Microanalysis 2010 in Portland, Oregon, USA, August 1 – August 5, 2010.
The authors report the self-assembly and characterization of monolayer PbS quantum dots (QDs) on GaAs substrates and the effect of thermal annealing on close-packed PbS QD films. The QD monolayer film was prepared using a 1,6-hexanedithiol self-assembled monolayer to link PbS QDs to GaAs substrates. Atomic force micro…
Water resistance properties of kenaf bast fiber bundle (KBFB)–reinforced composites with either unsaturated polyester (UPE) or vinyl ester (VE) matrices, developed in previous research, were studied. The effects of styrene content in UPE resin on the neat UPE resin tensile properties and molding pressure on composite…
The radial thermal expansion αr of bundles of single-walled carbon nanotubes saturated with He4 impurities to the molar concentration 9.4% has been investigated in the interval 2.5–9.5K using the dilatometric method. In the interval 2.1–3.7K αr is negative and is several times higher than the negative αr for pure nano…
By bending commercially available XLPE power cables around hollow cylinders with different diameters, the insulation was subjected to a wide range of tensile and compressive strains. By using a simplified model, the applied compressive and tensile axial strains at the conductor screen of the bent cables were estimated…
Abstract Stable water‐soluble CdHgTe nanorods with an emission wavelength at 722 nm, obtained by doping Hg 2+ into CdTe nanorods, has been used as a near‐infrared region (NIR) probe to investigate their interaction with copper(II) ions. A new fluorimetric method for the determination of copper(II) ions has been develo…
Growth and polymer synthesis were studied in a recombinant E. coli strain carrying phaBAC and phaP of Azotobacter sp. strain FA8 using different carbon sources and oxygen availability conditions. The results obtained with glucose or glycerol were completely different, demonstrating that the metabolic routes leading to…
Transmission electron microscopy (TEM) technique was used to investigate the structure of carbon nanowalls (CNWs). The TEM observation clearly indicated the existence of the bended graphene structure in boundary regions between the crystallites of CNWs. According to this TEM result, the first-principles calculation wa…
Inorganic flame retardant, magnesium hydroxide (MH), was surface-modified through in-situ encapsulation of an organic nitrogen flame retardant, melamine cyanurate (MCA) by making use of the self-thickening effects during melamine-cyanurate self-assembly process. The obtained MH encapsulated by MCA (MCA-MH) was applied…
Recently a number of papers have reported enhanced electrical (ageing and breakdown) performance of nano-composites when compared to the properties of the base resin material. The physical reasons for this improvement are the subject of many current studies and have yet to be fully formulated. In this work, the build-…
A novel, cost effective, environment-friendly and energetically beneficial alternative method for the synthesis of giant dielectric pseudo-perovskite material CaCu3Ti4O12 (CCTO) is presented. The method involved auto-combustion of an aqueous precursor solution in oxygen atmosphere with the help of external fuels and i…
A new procedure for the pulse signal separation generated by multiple sources during Partial Discharge (PD) measurements, is presented in the paper. It is based on the analysis of signals projected into a 3D Amplitude-Frequency Space (AFS) obtained by selecting three different frequencies from the FFT of the recorded…
The spectrum of the spin-wave excitations (SWEs) that are localized in a unit cell of the tangentially magnetized 2D ferrite magnonic crystal is experimentally and numerically studied. The groups of SWEs that are localized in the central part of the unit cell and in the regions of the magnonic crystal parallel to its…
New topographic details appeared evident in protein crystal buffered with glycerol solution native on mica by atomic force microscopy and after laser irradiation on glass by light microscopy. This observation indicates the existence of distinct domains in the 3D crystal organisation that are quite different in size an…
In this paper, an improved space charge measurement system based on the pulsed electro acoustic technique (PEA) is presented. The new system gives an essential way to examine the role of space charge in electrical aging process under AC conditions. The system setup for AC measurement is presented and detailed in this…
The heat capacities of lanthanum and lutetium orthovanadates have been measured at temperatures from 7 to 345 K using an adiabatic calorimeter. No anomalies have been detected in the heat capacity data. The thermodynamic functions (C 0 (T), S 0(T), and H 0(T) − H 0(0)) of the two compounds have been calculated in the…
The Japan Sodium-cooled Fast Reactor (JSFR) has adopted an in-vessel fuel handling system that consists of a single rotating plug, an upper inner structure (UIS) with a vertically penetrating slit, and a fuel handling machine (FHM) with a pantograph arm enhancing a compact reactor vessel design. Since the reactor vess…
Nano structured Ni52.6Mn23.7Ga24.3 alloy was prepared using the ball milling technique. High martensitic transition temperatures are observed in the range between 336 and 367 K. The X-ray diffraction profile revealed that annealed Ni–Mn–Ga powder at 1073 K displays mixture phases of austenite and martensite. Annealing…
This study investigates the effects of thermal annealing on the MgxZn1−xO films. MgxZn1−xO films were deposited by a radio-frequency magnetron sputtering system using a 6 in. ZnO/MgO (80/20 wt %) target. The Hall results, x-ray diffraction (XRD), transmittance, and x-ray photoelectron spectroscopy (XPS) were measured.…