Materials Literature
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Conductivity is a main issue in research on multiferroic perovskite oxides, which makes the characterization of their ferroelectric properties difficult, and for several compounds even to unambiguously state their ferroelectric nature. In this report, we use ferroelectric BiMnO3–PbTiO3 as a model system to study the r…
It is established that sodium nanoparticles with sizes of several hundreds of nanometers, several tens of nanometers, and several nanometers are formed in γ-irradiated photobleached NaF crystals. Along with randomly scattered particles, areas in which nanoparticles with sizes of tens of nanometers are grouped around a…
Ni(II) β-diketonate derivatives – β-iminoketonates with general formula Ni(RC(O)CHC(NH)R1)2 (R = R1 = CH3, C(CH3)3; R = CF3, R1 = CH3, C(CH3)3; R = C(OCH3)(CH3)2, R1 = CH(CH3)2, C(CH3)3) and Ni(1,3-diaminopropane)(R2C(O)CHC(O)R3)2 (R2 = C(CH3)3, R3 = CF3, C(CH3)3) – were synthesized with high yields. The products are…
The influence of the chemical structure of the poly(arylenephthalide)-class polymers on the charge carrier transport through a metal/polymer interface has been discussed. On the basis of the results obtained by physical and optical methods and quantum chemical modeling, the conclusion is made that a change in the skel…
"Second-gradient models accounting for some effects of microstructure on remodelling of bones reconstructed with bioresorbable materials." Computer Methods in Biomechanics and Biomedical Engineering, 16(sup1), pp. 260–261
Sealed-tube synthesis of BiMn2O5 materials and their physical properties have rationally been reinvestigated depending on the reactants. The aim of the study was to characterize its potential multiferroic properties and to investigate the anomalous magnetic properties in relation to the expected ferroelectric properti…
Pt/MgAlO x samples have been obtained by the adsorption of platinum carbonyl complexes on aluminum-magnesium oxides with Mg: Al = 2, 3, and 4. The composition of the adsorbed complexes has been determined. The catalysts synthesized from the carbonyl precursor show a higher activity in propane dehydrogenation and are l…
Chlorine atom densities in the excited spin–orbit state measured by two-photon absorption laser-induced fluorescence in a chlorine inductively coupled plasma, Sirse, N, Booth, J P, Chabert, P, Surzhykov, A, Indelicato, P
${\rm MnBi/Sm}_{2}{\rm Fe}_{17}{\rm N}_{\rm x}$bulk anisotropic hybrid magnets have been fabricated employing hot compaction of mechanically milled powders. The effects of${\rm Sm}_{2}{\rm Fe}_{17}{\rm N}_{\rm x}$content on the magnetic properties, density and texture of the hybrid magnets were investigated. With incr…
Energy is one of the most important ingredients in any industrial activity. The availability is not infinite however. Energy crisis globally, as well as high cost of fuels resulted in more activities to conserve energy to maximum extent. Energy crisis globally, as well as high cost of fuels resulted in more activities…
Dynamic viscoelastic properties and morphology of poly(methyl methacrylate) (PMMA)/poly(vinyl alcohol) (PVA) blend prepared by melt kneading was investigated. These solubility parameter values differ greatly. Two kinds of PVA with saponification degrees of 88 and 98 mol.% were used. Micrometre-order domains were obser…
Mutual interaction of redox pairs was evaluated using the concept of intrinsic oxygen fugacity in a melt. A “rose of $f_{O_2 } $ trends” was proposed for the visualization of possible directions of mutual oxidation/reduction of redox pairs for a given melt composition. Missing thermodynamic data were estimated for van…
A multifunctional free standing sheet of polypyrrole has been fabricated using a versatile in-situ chemical polymerization of pyrrole along with carbon fibers followed by thermal curing in the presence of phenolic-novolac resin for the electromagnetic shielding application. Different formulations have been designed in…
Cadmium ferrite was prepared by standard ceramic method and characterized by XRD, IR and SEM techniques. The X-ray analysis confirms the formation of single phase cubic spinel structure. The lattice constant decreases slightly and porosity increases with increase in sintering temperature. The crystallite size of the s…
Aloe vera is a stem less or very shortstemmed succulent plant growing to 60-100 cm (24-39 in) tall, spreading by offsets. The leaves are thick and fleshy, green to grey-green, with some varieties showing white flecks on the upper and lower stem surfaces. In recent years, researchers in the field of nanotechnology are…
Multiphase nanopowders (NPs) and amorphous/amorphous-nanocrystalline coatings (A-NC) have been prepared by the evaporation of ceramic targets of Al 2 O 3 -Fe 2 O 3 (0.1, 3, 5 Fe 2 O 3 mass %) by a pulsed electron beam in vacuum. The specific surface area of NP Al 2 O 3 -Fe 2 O 3 reached 277 m 2 /g. The α and γ phases…
The Ba2Co2-xZnxFe12O22(x = 0.0$, 0.5, 1.0, 1.5, and 2.0) polycrystalline samples were synthesized by the solid-state reaction method. Based on the Rietveld refinement, the crystal structures of samples were found to be single-phased and determined to be rhombohedral with space group of R - 3m. The unit cell volume (Vu…
Surface Enhanced Raman spectroscopy (SERS) is an enhanced technique of Raman spectroscopy, which amplifies the intensity of Raman scattering to a practical range with adsorption of analyte onto nano-size plasmonic material such as gold, silver or copper. This feature of SERS has given it a niche in tracing molecular s…
The influences of Y (0.2, 2 and 4 wt.%) additions on the hot tearing behaviour of Mg‑1.5Zn alloys were investigated using a constrained rod casting (CRC) apparatus equipped with a load cell and data acquisition system. The initiation of hot tearing was monitored during CRC experiments. It corresponds to a drop in load…
Two binary alloys, Mg-1Ce and Mg-1Gd (wt.%), were subjected to severe deformation via. single-pass rolling, followed by annealing treatments at different temperatures. Optical microscopy, X-ray diffraction and electron backscatter diffraction techniques were applied to characterize the respective texture and microstru…