Materials Literature
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This study reports the structure and the magnetic properties of Zn1−x Ni x S nanocrystalline films with Ni composition ratios of 0.05 ≤ x ≤ 0.2. Thin films of Zn1−x Ni x S were deposited on Corning glass substrates by using an electron-beam evaporation method. X-ray diffraction patterns revealed single- phase films wi…
We have fabricated multi-layer graphene (MLG) wiring and demonstrated a resistivity of the same order as Cu and reliability better than Cu. The MLG was synthesized epitaxially by chemical vapor deposition (CVD) on an epitaxial Co film, resulting in quality and electrical properties as good as those of a graphite cryst…
The air-retaining property of the hydrophobic surface can be widely employed in many applications. This study is carried out to enhance this property by biomimicking the structure of Salvinia molesta floating leaves, which features hydrophilic patches on a superhydrophobic structure. Different from the existing lotus…
A new approach has been made to determine electroconductive properties of a textile product on the basis of the idea of Van der Pauw method. This method is used to determine only two characteristic resistances associated with four electrodes. Surface resistivity of the sample is not determined because this technique r…
In this research, the renewable source, tapioca starch (TS) is used as the subject to improve the degradability of injection moulded plastic packaging. The TS blended with low density polyethylene (LDPE) was melt compounded using a twin screw extruder at screw speed at 70-80 rpm, barrel temperature range at 150, 130,…
The polarized Raman spectra of deuterated potassium dihydrogen phosphate crystals with different deuterium concentrations are measured. With the increasing deuterium concentration, the Raman peaks which are assigned as the internal vibrations of the (H/D) 2 PO − 4 anion shift to lower wavenumbers. This red-shift contr…
Studies of woven fabric comfort properties have aroused the interest of researchers in recent years. Although studies on the structures of woven terry fabrics are rather limited, the study of the comfort properties these fabrics will reveal new approaches regarding the subject. The terry-structured fabrics, used in ba…
Magnetite thin films (10–300 nm) are deposited on different substrates including single crystals ((0001)-Al 2 O 3 , (001)-Si, (110)-SiO 2 ), textured polycrystalline oxide underlayers (ZnO), amorphous glass, at temperature from room temperature to 550 °C by the pulsed laser deposition technique. Strong (111)-texture c…
Measurement of partial discharge (PD) in high voltage equipment is widely used in condition assessment and performance maintenance of the insulation system. One of the methods to evaluate PD data from condition monitoring activities is by analysing PD signals captured from the PD detection equipment. In high voltage p…
SBA-15 type ordered silicas possessing amino groups attached onto their surfaces were prepared by using two different functionalization methodologies. These matrices were used for the cephalexin adsorption from aqueous solution and further kinetic study of its release into physiological solution. The materials were ch…
This paper investigates the impacts of weave structures and weft density on the Poisson's ratio of worsted fabric under uniaxial extension. In this study nine groups of worsted fabrics comprising of three weave structures (twill 2/2, twill 3/1 and hopsack 2/2), each produced in three different weft densities were exam…
Insulation systems are subjected to environmental stresses such as temperature and moisture. These atmospheric stresses cause ageing of polymeric dielectric materials through change in material properties. Under application of DC field, ageing might affect the accumulation of space charge within the dielectric materia…
Atualmente há um expressivo aumento no consumo de cimento, aliado à crescente preocupação ambiental inserida dentro do processo industrial. Com o intuito de amenizar impactos gerados pelo consumo de matéria-prima e emissão de CO2 para a atmosfera, foi realizado um estudo em laboratório no qual a escória do forno panel…
The objective of this review is to outline the application of bicelles (or called bilayer micelles) and bilayer nanodisks in pharmaceutics, pharmaceutical analysis and biochemistry. The application of open disk-like structures as model membrane and drug carrier has been described. The exploration of many reports in di…
Polymeric cables operating under high voltage direct current (HVDC), suffer from space charge accumulation and may exhibit a relatively low depletion rate of accumulated charges when the external field is removed. Increasing the reliability of polymeric dc cables is of crucial importance. The development of new polyme…
Abstract Fluorcalcioroméite, (Ca,Na) 2 Sb 2 5+ (O,OH) 6 F, is a new roméite-group, pyrochlore-supergroup mineral (IMA 2012-093), from Starlera mine, Ferrera, Hinterrhein district, Grischun, Switzerland. The intimately associated minerals are: braunite, hematite, calcite, quartz and, rarely, wallkilldellite-(Mn). It oc…
A novel composite formed by interaction of a octa(3-chloropropyl)octasilsesquioxane modified with Purpald®, and its subsequent reaction with silver and hexacyanoferrate (III) (AgHSP), was synthesized and initially characterized by Fourier transform infrared spectra (FTIR) and cyclic voltammetry. The cyclic voltammogra…
The role of some anhydride derivatives namely: tetrabromophthalic anhydride, 1,2,4,5-benzene tetracarboxylic anhydride, phthalic anhydride, and maleic anhydride (1-4) as corrosion inhibitors for carbon steel in 0.5 M HCl have been studied using weight loss, potentiodynamic polarization, electrochemical impedance spect…
RF GFET devices have been processed on SiC wafer using Al2O3as a gate oxide. These devices have been characterised with DC, S parameter and high frequency noise measurement (NF50). The noise parameters have been extracted in order to evaluate the graphene material for RF applications. This GFET shows some potentialiti…
A life cycle costing (LCC) is to be performed complementary to the ongoing research on an enhanced supercapacitor pouch cell, in order to provide additional decision support on the best cell chemistry from the economic point of view. Due to the early stage of the project so far merely the production phase is considere…