Materials Literature
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In this paper, the double layer concept of knitted fabrics suitable for performance sportswear, where each layer is separate from the other, was studied. Aerodynamic properties of this assembly, where the base layer is made of 100% wool and an external layer made of 100% filament polyester were determined. Fabric samp…
Arsenic K -edge X-ray absorption near-edge structure (XANES) spectroscopy has been used to investigate the local geometry around the pnictogen site in the REFeAsO (RE=La, Pr, Nd and Sm) oxypnictides, combined with full multiple-scattering calculations to understand different XANES features. The As K -edge XANES spectr…
In this study, changes in the chemical, structural, and electrical properties of undoped and 8.4 at. % nitrogen-doped GeTe films were investigated. The transition temperature of sheet resistance increased as a result of nitrogen doping, which corresponded well with phase transformations. The shift of chemical potentia…
The influence of different processing stages on the low stress mechanical and surface properties of cotton knitted fabrics has been studied. The KES-FB system has been used for the measurements of low stress tensile, shear, bending, compression and surface properties. The results show remarkable changes in mechanical…
Heterogeneous nucleation of water plays an important role in wide range of natural and industrial processes. Though heterogeneous nucleation of water is ubiquitous and everyday experience, spatial control of this important phenomenon is extremely difficult. Here we show, for the first time, that spatial control in the…
Modern insulation systems have to become more compact, less massive and environmentally acceptable. Elastic syntactic foams represent a multifunctional, elastic and compressible hybrid insulation material with a low density and a strong adhesion to polymers and metals. This kind of 'elastic foam' consists of a silicon…
The phase transition of metavariscite into berlinite has been studied by means of different techniques, namely electron probe micro analysis, environmental scanning electron microscopy, high-temperature X-ray diffraction, differential thermal analysis, thermogravimetry, thermoluminescence, and thermo Raman. The applic…
The crystallization behaviors of MgO–Al2O3–SiO2–TiO2 system glasses doping with different content Fe2O3 were investigated by means of differential thermal analysis and X-ray diffraction. The kinetic parameter of activation energy for crystallization (E) was obtained by the Owaza Johnson–Mehl–Avrami method. The results…
Carbon nanotube (CNT) films made from sing-wall and multi-wall nanotubes (SWCNTs and MWCNTs) were investigated recently as strain gauge for strain sensing. The quality of CNT films is important thereby as well as for many related applications. In this paper relevant processing factors such as the sonication time and c…
Superconducting LaFeAsO 1− x F x thin films were successfully deposited on (001)-oriented LaAlO 3 substrates from stoichiometric polycrystalline LaFeAsO 1− x F x targets with a fluorine concentration of up to x =0.25. For thin film fabrication we used pulsed laser deposition at room temperature in combination with a p…
The dielectric property and the electronic structure of double perovskite oxide strontium aluminium niobate, Sr 2 AlNbO 6 (SAN), synthesised by a solid state reaction technique are investigated. The Rietveld refinement of the X-ray diffraction data of the sample shows the cubic phase with the F m 3 m structure (lattic…
Abstract Building upon recent success, diamond nanoparticles or nanodiamonds (NDs) for short have emerged as a promising new nanomaterial for biological applications. The material holds several unique properties, such as low chemical reactivity, small particle size, large specific surface area, wide optical transparen…
This project was aimed at delivering a cost-effective, manufacturable and well characterised vest for impact detection, to support hdevelopment of an automated scoring system for amateur boxing. The initial work focused on partial automation of the manufacture of an existing boxing vest design to increase the vest’s r…
There are growing needs to measure the thermal properties of small-volume liquid samples in various fields of bioengineering and microfluidics. Accordingly, there have been efforts toward miniaturization of the sensing device without substantially sacrificing the sensitivity. The minimum sample volume required for qua…
Compounds with the skutterudite structure have potential use in thermoelectric power generation and the role of the filler atoms in filled skutterudites is still an open question regarding their effects on thermal conductivity. Partially filled skutterudite La0.1Co4Sb12 has been investigated by synchrotron powder x-ra…
It has been found experimentally that in the strongly anisotropic orthorhombic antiferromagnetic crystal LiCoPO4 (TN=21.7K) the destruction of antiferromagnetic order by a magnetic field directed along the antiferromagnetism axis H∥b occurs in steps by means of three phase transitions: two first-order transitions in t…
The single-bubble sonoluminescence of d - f (Ce 3+ , Pr 3+ ) and f - f (Tb 3+ ) ions is detected in aqueous solutions of LnCl 3 . It has been shown that the luminescence of these ions is sonophotoluminescence, i.e., the reemission of the absorbed short-wavelength part of the radiation spectrum of a blackbody, which ap…
Abstract By resistively heating tungsten filaments in a constant air flow under a reduced pressure, nanogranular amorphous WO 3 thin films are deposited on glassy carbon substrates. The substrate surface temperature is monitored by a thermocouple. For deposition times of 15 min and longer, the films show crystallizati…
We study the conformational transition of an ensemble of magnetic particles from a linear chain to a compact cluster when subjected to an external magnetic field modulation. We show that the transient dynamics induced by switching the field from static to rotating is governed by the relative friction of adjacent parti…
Abstract An asymmetry in tensile–compressive yield behaviour of extruded 99.95 % pure magnesium at two different strain rates was investigated. The yield asymmetry was observed at both strain rates, and the compressive yield strengths were over 50 % lower than the corresponding tensile yield strengths. Examinations wi…