Materials Literature
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Transparent conducting oxide films composed of ZnO and SnO 2 were prepared on glass substrates by co-sputtering method. After surveying the electrical properties of the films according to the cationic composition and process conditions, we investigated the influences of hydrogen doping on the films' characteristic pro…
Abstract The coarsening behaviour of Goss grains in grain oriented electrical steel during annealing after cold rolling was investigated. The results show that the coarsening resistance of fine second phase particles was reduced inside the surface grains. This induced particle coarsening and the reduction of particle…
A kinetics model describing macroscopic behavior of martensitic variants rearrangement in ferromagnetic shape memory alloys is proposed. The model is based on a tensor description of thermodynamic continuum mechanics taking into account magnetomechanical coupling on the rearrangement process. A generalized thermodynam…
Effect of microalloying with boron on the properties of steel is studied using a new complex silicon-, manganese-, and boron-containing FSMB ferroalloy. The mechanical properties and structure of steel alloyed with this ferroalloy are comparable to or even higher than those of steel alloyed with ferroboron.
Abstract Studies of the paragenesis of authigenic illite in arkosic sandstones of various regions and ages have revealed that the illitization of kaolinite is an important reaction accounting for the formation of authigenic illite in sandstones during burial diagenesis. The illitization of kaolinite takes place at an…
Abstract Solutions of suspended particles of nanodiamond and nanosilica in deionized water 25 mg/10 mL were prepared for the purpose of achieving saturation adsorption. The respective saturation thresholds and adsorption reaction constants of lysozyme of extremely diluted concentrations 0–1000 nmol/L in 7 mmol/L (pota…
CoFe2O4 Magnetic Nano Particles (MNPs) were synthesized by an efficient method in aqueous medium with the particle sizes of about 20-50 nm. Then, a hybrid nanocomposite of polyaniline (PANI)-CoFe2O4 MNPs has been electrodeposited directly on a stainless steel wire by the potentiostatic method. Microscopic images of el…
Two metal–organic nanotubular architectures are built from 2D layer structures with big windows through hydrogen-bonding self-assembly of a thiourea group, representing a strategy for the preparation of metal–organic nanotubes generated from 2D layer structures.
We describe observations into the inner workings of phase change memory devices, obtained by fabrication, electrical characterization, failure analysis, and modeling of prototype phase change memory devices over the past few years. Experiments involving the RESET and SET operations, the speed of SET operations, the im…
(Zr,Hf)NiSn -based half-Heusler thermoelectric materials have been prepared by melt spinning and spark plasma sintering to refine the grain size. The grain sizes of the melt-spun thin ribbons varied from ~500 nm to ~3 μm and no significant grain growth were found for the bulk samples compacted by spark plasma sinterin…
Carbidic ADI (CADI) is a new type of Austempered Ductile Iron containing free carbides in the microstructure, providing a particular combination of wear resistance and impact toughness. In this work, four CADI variants were evaluated, in which carbides were promoted by alloying with chromium. Tests performed under the…
Specific investigations concerning La-contributions in graphite nucleation process in Ca,Al,La-FeSi inoculated grey cast irons were performed by using a scanning electron microscopy (SEM, EDS). It was re-confirmed that complex (Mn,X)S compounds act as major nucleation sites for graphite flakes. La was mainly concentra…
Abstract Two‐dimensional porous networks self‐assembled in solution are rare, while maintaining the solution‐phase network structure upon casting on solid supports presents a major challenge. We report on oligoarylacetylene bearing amphiphilic perylene diimide moieties that self‐assemble into a two‐dimensional porous…
Abstract Chemically cross-linked chitosan (MC) containing 1,2,4,5- benzenetetracarboxylic acid (BCA) as the cross-linking agent was prepared to improve the metal ions absorption capacity of native chitosan (NC) and limit its biodegradability. The Fourier transform infra-red (FTIR) and proton neutron magnetic resonance…
Evaluation of the electrochemical characteristics of the AE21 magnesium alloy is presented in the article. The surfaces of tested alloys were treated by grinding and grinding followed by sodium bicarbonate shot-peening. The specimens were evaluated by electrochemical impedance spectroscopy method in combination with e…
Single-molecule magnets(SMMs) continue to be an attractive research field because of their potential applications in quantum information storage and quantum computing. Lanthanide-based polynuclear system is an important avenue to explore in pursuit of SMMs with higher anisotropic barriers. The progress and prospect on…
Aluminocoquimbite, AlFe(SO 4 ) 3 ·9H 2 O, is a new mineral species formed as a product of low-temperature ( P 31 c (no. 163), with a 10.7065(7), c 17.3077(11) A, V 1718.2(2) A 3 and Z = 4. The strongest six reflections in the X-ray powder-diffraction pattern [ d obs in A( I )( hkl )] are: 9.251(100)(010), 5.310(83)(11…
Polypropylene nanocomposites were synthesized by using the method of mixing in the molten state. Nanocomposites were obtained in twin-screw co-rotating extruders and the nanocomposites were prepared with percentage of nanoclay (C 2 ) from 5 wt-%, with and without compatibilizer agent (PP-g-MA).
The effects on the thermoelectric properties of n-Ba8Ga16Ge30 when substituting small amounts of the Ga or Ge with Sb or Zn have been investigated. A number of syntheses were prepared in quaternary systems of Ba8Ga16Ge30 substituted with either Sb or Zn but only three samples were found to yield single phase products…
Solidification of hypoeutectic gray cast iron has been investigated in a resistance furnace. A cylindrical shaped sample with three thermocouples, two inside and one in the surrounding, was solidified and compared to samples quenched at different stages during the solidification interval. An additional sample in the s…