Materials Literature
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Characteristics of epoxy adhesives for special purposes are described. These adhesives are used for joining together various substrates based on polyamides, ferrite, quartz, ceramics, and resins based on fluoroorganic rubbers.
Field emissions of wide-band-gap-material (WBGM)-coated single-walled carbon nanotubes (SWCNTs) were studied. Field emission current was gradually increased after monolayer coating (MgO-coated SWCNTs) and successive double layer coating (CsI∕MgO-coated SWCNTs). The turn-on field decreased from 3.26 to 2.43 and 1.61μAc…
Oxidation of ( PyP H) Fe II Br , an iron(II) complex of 6,11,16,21-tetraaryl-3-aza-m-benziporphyrin ( N -confused pyriporphyrin, ( PyP H) H ) has been followed, in the presence of pyridine, by 1 H and 2 H NMR spectroscopy. One-electron oxidation with dioxygen, accompanied by deprotonation of a C (22) H fragment and fo…
The compatibility of fibroin with polyvinyl alcohol in blend films prepared from a common organic solvent, hexafluoroisopropanol, was studied by IR spectroscopy and DSC.
Abstract Microstructure and texture evolution of an AlMg1Mn0.14 alloy after Equal-Channel Angular Pressing (ECAP) and subsequent heat treatment were investigated. Initially the material was subjected to up to 8 passes with a 90° die angle using routes A and B c . The deformed and annealed states were characterised by…
We have jointly developed the material and processes to integrate silsesquioxane optical waveguides on printed circuit boards for high-speed datacom applications, using a low-loss, reliable and commercially available polymer designed for 850 nm.
A structure comprising two lattices of silver or gold nanospheres is considered. It is shown that this structure can be used as a superlens capable of providing subwavelength imaging of a point source and a sub-wavelength spatial resolution of two sources at a distance within one wavelength.
Abstract We report the growth of ZnO nanorods with pentagonal cross‐section in electrodeposition on p‐type Si substrates. Cathodic potentials smaller than those used for growth of hexagonal nanorods are used. The pentagonal wires have a typical length of 1–2 µm and grow out of an inhomogeneous nano‐crystalline thin fi…
Abstract In this work, the thermoluminescent properties of pellets containing powdered Wollastonite embedded in Teflon were studied. The preliminary results using gamma rays from a 60 Co source showed linearity at the calibration curve between 0.5 Gy and 10 Gy. The main TL peaks are located at 125, 200 and 245 °C. The…
The paper presents results of a demonstration experiment on conversion of 50 kg of weapon-grade plutonium in the form of metal ingots into granulated MOX-fuel to be used for manufacturing fuel pins and 3 fuel assemblies (FAs) for the fast power-generating reactor BN-600, irradiation parameters of these FAs and the dat…
Abstract The time‐resolved emission spectroscopy using the fs‐laser pulse and ps X‐ray excitations was employed to compare the luminescence characteristics of the liquid phase epitaxy grown ZnO films and the hydrothermally grown single crystals. Reabsorption of the excitonic emission is demonstrated in the bulk ZnO. I…
The bending performance of fabric air beams varies significantly from conventional beams. Both are dependent upon the constitutive relations of the material, but air beams are further dependent upon the thermodynamics of the internal air. As the governing energy balance demonstrates, air beam bending is dependent upon…
In this work, experimental investigation is carried out in order to design and fabricate the UHF sensor that is able to detect the partial discharges produced from 10 artificial defects introduced into the real scale 70kV GIS mock-up under high voltage within a well shielded room. As well, in order to verify the on-si…
A single cell gap, single gamma curve, and low operating voltage transflective liquid crystal display (LCD) using an in-plane switching (IPS) cell is proposed. In the IPS cell, the pixilated transparent indium tin oxide electrodes are on the top substrate and the reflectors are on the bottom substrate. The electro-opt…
In the pulp and paper industry, the water use minimization is a constant target. One way to reduce water use is to recycle the effluent in a closed-cycle concept. In paper mills, the main source of liquid effluent is the so-called whitewater, which is the excess water, originated from pulp stock dewatering and other f…
Advanced cleaning formulations, such as liquid laundry packages, consist of many components that require a complex mixture of interfacial actives including silicones for foam control, bleach for brightening, and enzymes for stain removal. Many of these ingredients are mutually incompatible, particularly in liquid form…
The linguloid brachiopod shell family has been the focus of several studies because of the similarity in the composition of the mineral phase of these shells to that of human bone. However, ultrastructural features of Lingula shells have not yet been fully demonstrated at high magnification using Transmission Electron…
The torsional buckling of an individual multi-walled carbon nanotube under two different loading conditions is studied in this article. The multiple shell model is adopted and the effects of van der Waals forces between adjacent nanotubes are taken into account. An examination with an individual double-walled carbon n…
A short review of recent progress in the field of multiferroic thin films and heterostructures is given. We focus on the bismuth iron oxide system due to its desirable properties, namely high ferroelectric Curie temperature and antiferromagnetic Neel temperature. Epitaxial growth of this model system in various crysta…
Abstract The energy levels belonging to the three lowest J multiplets of the Er 3+ ion in Er 2 O 3 and ErF 3 were determined by means of high‐resolution optical absorption spectroscopy. A crystal‐field analysis of these data by means of Newman's Superposition Model was performed, allowing to determine intrinsic parame…