Materials Literature
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Textile structures have the potential to reduce interior noise in an automobile; here the sound absorption of a novel knitted spacer fabric is discussed. The spacer fabric was analysed as a micro perforated panel absorber, a simulation being carried out on the effect of the structural properties of the fabric on its s…
It is found that the voltage drop across a 170-nm-thick Pb(Zr0.4Ti0.6)O3 film keeps constantly at a well-defined coercive voltage during domain switching, irrespective of the applied voltage and frequency, and that the switching current of domains is reversely proportional to the resistance of loading resistors in the…
Using Co $K\ensuremath{\beta}$ x-ray emission spectroscopy (XES) we have investigated the effect of pressure on the Co spin state of a single crystal of metallic, ferromagnetic ${\mathrm{La}}_{0.82}{\mathrm{Sr}}_{0.18}\mathrm{Co}{\mathrm{O}}_{3}$. The analysis of the XES spectra up to $14.4\phantom{\rule{0.3em}{0ex}}\…
Li-doped ZnO (Zn1−xLixO, x=0.15) thin films have been grown on platinum-coated silicon substrates via pulsed-laser ablation. The films were grown at fixed substrate temperature of 500 °C and different partial pressure of oxygen (PO2∼100–300 mTorr). The films showed (002) preferred orientation. The doping concentration…
An indirect two-trace method to determine interfaces between two crystals with a uniquely defined interface plane is proposed. It involves preparation of only one sample surface, instead of the two perpendicular sample surfaces required by the traditional two-trace method. By making use of two independent interface tr…
In this study, a grazing-incidence X-ray scattering (GIXS) formula was derived for lamellar structures formed in thin films supported on substrates, and a comprehensive numerical analysis was performed using the scattering formula. A quantitative analysis was conducted of lamellar structures formed in nanometre-scaled…
The development of new Mg-Sn based alloys that have shown improved corrosion resistance needs further investigations to develop standard alloys for industrial use. In the present study, the influence of heat treatment was investigated by examining the creep resistance of Mg-Sn and Mg-Sn-Ca alloys at 85 MPa under 135 °…
The polarization reversal mechanism in [111]c-oriented Pb(Zn1∕3Nb2∕3)O3−xPbTiO3 has been investigated by in-situ neutron diffraction. Stepwise static-field measurements of the (222)c rocking curves confirm a two-stage polarization reversal mechanism via a sequence of non-180° domain reorientations. The time-resolved r…
We report the preparation, crystallization, and solid-state characterization of cycloheptyl and cyclooctyl-substituted spirobiphenalenyl radicals and the corresponding sigma-dimer of the cyclooctyl derivative. The crystal structure shows that the cycloheptyl radical (9) is monomeric in the solid state, with the molecu…
In this paper, we present a chemical co-precipitation approach in aqueous solution to prepare a highly crystalline monodispersed CoFe 2 O 4 magnetic nanoparticles coated with oleic acid. These products can be transferred into organic solvent by adjusting to pH 5 under the effect of HCl and re-transferred into water ph…
Abstract This work was focused on the production and characterization of microcellular polyurethane (PU) composites reinforced with pine wood‐fibers or with hemp, which can be applied to the manufacture of car interior panels, or acoustic insulation panels for the construction industry. The polymers selected for the s…
Magnetoelectric (ME) laminated composites with all phases environmentally friendly were prepared by sandwiching one layer of thickness-polarized (Bi1∕2Na1∕2)TiO3-(Bi1∕2K1∕2)TiO3-BaTiO3 lead-free piezoelectric ceramic disk between two layers of thickness-magnetized Tb0.3Dy0.7Fe1.92 giant magnetostrictive alloy disk alo…
We report on a detailed study of structural, magnetic, and electronic properties of MnxGe1−x single crystals (0<x<0.1) prepared by the Bridgman’s crystal growth technique. The chemical distribution of Mn in a Ge matrix investigated by means of energy dispersive x-ray spectroscopy indicates a strong phase…
All that scatters…︁ A single-molecule detection technique, named resonance light-scattering correlation spectroscopy, has been developed based on the extremely strong resonance light scattering of gold nanoparticles. This technology was successfully used to determine the size of gold nanoparticles, and to rapidly dete…
In view of the increasing needs for efficient usage of natural resources and environmental protection in our modern society, weight reduction in transportation such as cars, trains or aircrafts is of fundamental interest. In order to solve this major issue, improved concepts are necessary which also emphasize the usag…
Degradable implants have been in use for bone surgery for decades. However, degradable metal implants are one of the new research areas of biomaterials science. There is a potential for application of degradable metal implants as screws and plates in bones. Magnesium alloys are one of the new candidate materials for d…
Famotidine crystallizes in two different polymorphic forms: the metastable polymorph B and the stable polymorph A. In this work, solid characterization for both polymorphs has been conducted in detail. The solubility, metastable zone width and interfacial energy of both polymorphs in different solvents have been measu…
ASTRA2.0 is a program package for single-crystal structure research using different experimental conditions and radiation of different types (X-rays, neutrons and electrons). The package includes programs for data collection optimization, data reduction, structural parameter refinement and electron density plotting. T…
The dititanium-containing 19-tungstodiarsenate(III) [Ti(2)(OH)(2)As(2)W(19)O(67)(H(2)O)](8-) (1) has been synthesized and characterized by IR, TGA, elemental analysis, electrochemistry, and catalytic studies. Single-crystal X-ray analysis was carried out on Cs(8)[Ti(2)(OH)(2)As(2)W(19)O(67)(H(2)O)].2CsCl.12H(2)O (Cs-1…
A simple cold plasma technique was developed to functionalize the surfaces of polyamide (PA) and polyester (PET) for the grafting of polyethylene glycol (PEG) with the aim of reducing biofilm formation. The surfaces of PA and PET were treated with silicon tetrachloride (SiCl4) plasma, and PEG was grafted onto plasma-f…