Materials Literature
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In order to study the attenuation of shock waves induced by a high-power pulsed laser in magnesium alloy, an AZ31B magnesium alloy sample is processed with an Nd:Glass laser with a wavelength of 1054 nm and pulse width of 23 ns, and the relative pressures of the shock waves are measured on time by a polyvinglidene flu…
Barkhausen noise (BN) measurements were performed on samples of high permeability and conventional grain-oriented steels at both high and low flux densities in order to investigate the characteristics in each magnetization regimes. Previous works deal with measurements of Barkhausen noise carried out at high flux dens…
In the method of thermoporometry, the characterization of pore space is done by analysis of thermal eects associated with freezing and melting of a liquid in the pores of the material under investigation. Thermoporometry seems particularly well suited to studies of wet porous samples in cases where the process of dryi…
Bamboo properties are somewhat similar to certain timbers but it has an advantage of having longer fibres, making it suitable for the production of pulp for paper and hardboard. However, the pulping process is a very crucial stage to produce fibres with an optimum quality. This study was carried out to characterize th…
Cross linked polymers PU (polyurethane) gel electrolytes have been synthesized from polyethylene oxide triol (PEO triol) and 4,4-methylenediphenyl diisocyanate (MDI). The minimum and maximum intake of liquid electrolyte by this gel is 35 and 65 wt % respectively. WAXD patterns for PU gel electrolytes shows featureless…
Using vegetable oils has become an excellent option for petrochemical product substitution. The epoxides obtained from such oils have wide applications as plastifiers and PVC stabilisers and as raw material in polyol synthesis for the polyurethane industry. This paper presents soybean oil epoxidation using a homogeneo…
Thermal manikins have been used to measure thermal properties of clothing. The use of thermal manikins has made a step forward in terms of quantifying thermal properties of clothing in a 3-D manner compared with the use of hotplates for material testing. The effects of clothing properties measured on the thermal manik…
Ischemic cardiovascular diseases remain among the most serious health challenges worldwide, despite many breakthroughs in cardiovascular medicine. Recently, approaches using stem or progenitor cells to regenerate these ischemic cardiovascular tissues have emerged as a novel therapeutic option. Currently, various bone…
CVD diamond particle detectors are already in use in the CERN experiments ATLAS, CMS, LHCb and ALICE and at various particle accelerator laboratories in USA and Japan. This is a proven technology with high radiation tolerance and very fast signal read-out [1]. It can be used for measuring single-particles as well as f…
A method for time-resolved Photoluminescence Imaging using a high-resolution Si-CCD camera was developed. The use of a fast rotating shutter wheel decouples the obtained temporal resolution from the camera exposure time, making it possible to record the decay curve of free minority charge carriers. With this transient…
Congo red dye has been bonded to the functionalized octameric polyhedral silsesquioxanes (POSS), which were prepared by hydrolytic condensation of chloro-functionalized organosilicon monomers in the presence of a catalyst. The binding reaction of congo red to the POSS with chloro groups was achieved via the addition o…
Thin films and powders of dilute Fe-Au alloys have been produced by DC -magnetron sputtering and high-energy milling, respectively. Energy disperse X-ray spectroscopy gives Fe 7 Au 93 for the films and Fe 14 Au 86 for the powders. The film, with a thickness below 200 nm measured by atomic force microscopy, was deposit…
The urea adduct with the guests of m-nitrobenzoic acid, m-nitroaniline and p-xylene mixtures by adductive crystallization was successfully grown by slow evaporation method. The single crystals obtained were non-hygroscopic and good in size. The crystal structure of the grown crystal has been determined, and it belongs…
The electrochemical properties of nanocomposite thin film prepared by the pulsed laser deposition method have been investigated by cyclic voltammetry and charge/discharge measurements. The large reversible capacity of the nanocomposite thin film was 653 mAh/g. A couple of reduction and oxidation peaks at 1.45 and 1.14…
Secondary-sourced recycled aluminium alloys can exhibit high levels of different impurities. It is well known that the presence of iron, the most common impurity, can lead to the formation of hard and brittle intermetallic phases which are detrimental to the machining properties and the mechanical behaviour of the mat…
Three composition spreads were prepared, characterized, and then tested in 64-electrode proton exchange membrane fuel cells. The spreads were prepared by sputter-depositing a linear gradient of Re, Nb, or Bi with a constant amount of Pt in a manner that allowed for atomic level mixing of the elements. Re and Nb were s…
Electrochemical replication of nanoporous membranes represents a facile approach towards the fabrication of nanostructures with tailored properties. By the template method we prepared multisegment nanowires with tailored structure. The first step of the process was the fabrication of the nanoporous template by swift h…
Preface CHIRALITY AT METAL SURFACES Introduction Surface Chirality Following Molecular Adsorption Chiral Amplification and Recognition Conclusions THE TEMPLATE TO NANOSTRUCTURED MODEL CATALYSTS Introduction Surfaces as Two-Dimensional Templates STM Imaging of Oxide Films STM Imaging of Metal Particles on Oxide Films T…
The service lifespan of components used at higher temperatures in corrosive and abrasive environments can be prolonged by high-temperature corrosion-resistant coatings. This study is concerned with the microstructural characterization of some slowly cooled Nickel-based hardfacing alloys investigated by differential th…
The reduction of area in the through thickness direction is an essential mechanical property of thick steel heavy plates. By a routine control, a very small through thickness reduction of area was found for tensile specimen of a 90 mm plate. Careful investigations of the fracture and section of specimens cut from the…