Materials Literature
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"Optimisation of mechanical properties of Ti–Nb binary alloys for biomedical applications." Computer Methods in Biomechanics and Biomedical Engineering, 14(sup1), pp. 119–120
Nitrogen-doped ultrananocrystalline diamond (UNCD)/hydrogenated amorphous carbon (a-C:H) composite films, which possessed n-type conduction with enhanced electrical conductivity, were prepared by pulsed laser deposition. The film doped with a nitrogen content of 7.9 at. % possessed enhanced electrical conductivity of…
The overall display performance of representative commercially available +LC and –LC liquid crystal (LC) mixtures may be improved by the addition of small quantities of penta-, tetra- and tri-fluorinated biphenyl ether dopant systems. Synthetic routes for the preparation of the fluorinated dopants by nucleophilic arom…
This study aimed at utilizing nutraceutical industrial waste and reducing carbon footprints of plastics. Vinyl ester green composites (VEGCs) have been prepared with turmeric spent A (TS) and organically modified layered silicates (o-montmorilonite, MMT) (organoclays). Tensile behavior and impact strength of vinyl est…
The millimeter-wave passive radiometric imaging systems based on the single channel design are developed. The systems are intended for disclosure of dangerous objects concealed under persons' clothing in short distances and for passive visualization of remote targets. The low-noise compact receiver (noise factor 4.5dB…
The ferroelectric and piezoelectric properties of ceramic solid solutions having a composition of (1−x)(Bi0.9Nd0.1)(Sc0.9 B 0.1)O3 − x PbTiO3 (x = 0.60–0.66; B = Lu, Yb, Er, Y) and obtained by solid state reaction were studied. An increase in the Curie temperature was found upon an increase in the concentration of lea…
Cubic KTa 1-x Nb x O 3 single crystals with difference compositions have been grown by Czochralski technique in KTaO 3 - KNbO 3 solid solution system. Growth habit, morphological feature, and other properties of two different composition KTN crystals, KTa 0.65 Nb 0.35 O 3 , and KTa 0.63 Nb 0.37 O 3 are investigated in…
The behavior of polarization of a Ba0.8Sr0.2TiO3 thin film in an external electric field for a planar geometry of electrodes is described using a simple phenomenological model. The “van der Waals field” E z formed by the substrate along the normal to the film surface is introduced for fitting to experimental data. Thi…
The channel spark discharge was used as a high-current density (up to 30 kA/cm 2 ) relatively low-energy (<20 keV) electron beam source in a pulsed plasma deposition (PPD) gun. The PPD gun was used for the deposition of thin films by pulsed ablation of different target materials, at a background gas pressure in the…
The field current in the hybrid excitation machine affects the flux, torque, voltage, power factor and efficiency. The machines used in the EV and HEV are working in a wide range, the optimization of the efficiency should be applied in the whole working range. The core losses are hard to predict especially with distor…
The mechanical behavior of HDPE, medium-density PE, and amorphous and amorphous-crystalline PET after their preliminary orientation is studied. The polymers are oriented by rolling at room temperature on lab-scale rolls, tensile drawing at temperatures somewhat higher than their glass-transition temperatures, and extr…
Fosinopril is one of the most hydrophobic substances among the angiotensin-converting enzyme inhibitors, exhibiting low water solubility and poor bioavailability following oral administration. Inclusion complexes between the drug substance and cyclodextrins (CDs) were obtained in order to improve its solubility. The p…
Coupled nanofibers consisting of cobalt oxide (Co 3 O 4 and zinc oxide (ZnO) were prepared by the electrospinning process, and tested as a photocatalyst for dye degradation.Initially, electrospinning of a sol-gel consisting of cobalt acetate/zinc acetate/poly(vinyl alcohol) was used to produce polymeric nanofibers.Cal…
Fluornatromicrolite is a new mineral species of the pyrochlore supergroup (microlite group), with fluorine dominant at the second anion site. The type locality is the Alto Quixaba granitic pegmatite near Quixaba village, municipality of Frei Martinho, Paraiba, Brazil. Fluornatromicrolite forms adamantine green regular…
Diffraction prevents the spatial resolution of fluorescent species co-localized within areas of nanoscaled dimensions. As a result, conventional fluorescence microscopes cannot resolve structural features at the molecular level. Time, however, can be exploited to distinguish fluorophores within the same subdiffraction…
A simple one-step method was used for preparing the beta-cyclodextrin/polyacrylonitrile (PAN) nanofibers deposited with silver nanoparticles by electrospinning and followed by the reduction of the Ag+ ions. The nano-composite fibers were stabilized at 280 degrees C in air and activated at 800 degrees C for 1 h in stea…
Corrosion and inhibitor protection of mild steel specimens immersed in acid chloride solution was investigated at ambient temperature by gravimetric and potential monitoring methods. The electrode potential monitoring was performed using a digital voltmeter and a saturated calomel electrode (SCE) as the reference elec…
Here, we present a direct observation of fatigue phenomena in epitaxially grown Pb(Zr0.2Ti0.8)O3 (PZT) thin films using second harmonic piezoresponse force microscopy (SH-PFM). We observed strong correlation between the SH-PFM amplitude and phase signals with the remnant piezoresponse at different switching cycles. Th…
The effect of plasma parameters (e.g., electron density and temperature, ion density and temperature, neutral atom density, and temperature) on the growth (without a catalyst), structure, and field emission of electrons from a cylindrical metallic carbon nanotube (CNT) surfaces has been theoretically investigated. A t…
Polymer based composites have received high interest due to their unusual combination of stiffness and toughness that are difficult to attain from individual components. For this reason, they have been widely used in areas of transportation, construction, electronics and consumer products. Nanocomposites exhibiting a…