Materials Literature
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Очерчен круг проблем, не позволяющих в полной мере реализовать огромный потенциал применения фосфида индия и арсенида галлия в твердотельной электронике. Проанализированы и обобщены классические и современные результаты по термическому оксидированию полупроводников AIIIBV, в том числе со стимуляцией процесса обработко…
Abstract The photophysical properties of lanthanide(III) complexes depend on the magnitude of orbital mixing between the lanthanide(III) and ligands. Herein, an estimation method of orbital mixing in lanthanide(III) complexes is reported using LnCl 3 ⋅ n H 2 O (Ln=Pr, Gd, Tb) and Ln(tfa) 3 (H 2 O) 2 (tfa: trifluoroace…
Komposit serat alam adalah salah satu komposit ramah lingkungan. Serat alami seperti rami, pisang, rosella, rami dan kenaf mampu menjadi bahan penguat yang baik untuk komposit termoset atau termoplast. Komposit yang menggunakan penguat serat alami dapat ditingkatkan dengan menambahkan waktu pressing dalam proses pembe…
This paper presents the results of analysis of commercial CuSn6 alloy in form of strips at semi-hard state, plastically deformed in the process of repetitive corrugation. The influence of process parameters on the value of residual stresses and texture of examined material was investigated. As a result of residual str…
The purpose of this study was to produce composite thin films with polyvinylpyrrolidone (PVP) matrix with nanoparticles of silicon dioxide (SiO 2 ) as the reinforcing phase (5 and 10%) using spin coating method and to investigate the influence of mass concentration of silica particles and process parameters on the mor…
Evolution of carbide phase in surface layers of volume (passed gross tonnage 500 and 100 million tons) and differentially hardened rails (passed tonnage – 691.8 million tons) to a depth of 10 mm along the central axis and along the rail head fillet was studied by means of transmission electron diffraction microscopy.…
Nanopowders (NP) based on cobalt have significant prospects for use in various fields of science, engineering, industry and medicine. In this work the authors have studied the kinetics of the production of metallic cobalt nanopowder by hydrogen reduction of oxide material Co 3 O 4 in an electromagnetic field, an d wit…
Novel Ni-doped TaN (Ni-Ta-N) films are deposited by remote plasma-enhanced atomic layer deposition (ALD) with pentakis(dimethylamino)tantalum, nickelocene, and NH3 precursors for Cu diffusion barriers. Various Ni-Ta-N films with different compositions are achieved by changing the deposition cycles (n) of Ni sublayer w…
In the present paper, the capabilities of canola meal (CM)-based biosorbents for the selective water removal from aqueous solution of butanol were investigated for purifying butanol. The raw canola meal (RCM) after protein extraction was pretreated using 5% (v/v) sulfuric acid to enhance the water adsorption character…
We introduce the design and implementation of quasi-periodic gratings for high-order diffraction suppression. The effects of hole shape (circle, rectangle, diamond, and hexagon) and location distribution on the diffraction properties are investigated. We theoretically and experimentally demonstrate that the quasi-tria…
Successful patterning requires good control of the photolithography and etch processes. While compact litho models, mainly based on rigorous physics, can predict very well the contours printed in photoresist, pure empirical etch models are less accurate and more unstable. Compact etch models are based on geometrical k…
The paper presents a comparison of the nitrided layer structure and morphology formed with a conventional controlled gas method, widely use in industrial applications and a layer formed with cathode plasma nitriding (CPN) and active screen plasma nitriding (ASPN). Nitriding processes were realized at 793K for differen…
An optimal platinum alloy for precision casting was developed by taking 25 possible alloying elements into consideration. In order to rank these elements an equation was designed. The ranking allowed five promising alloy compositions to be identified. From these five alloys arc melted buttons were produced and tested…
An (Al,Cu)13(Fe,Cu)4phase of [trideca(aluminium/copper) tetra(iron/copper)] was obtained by the high-pressure sintering (HPS) process of a mixture with composition Al78Cu15Fe7. Structure analysis suggests that Cu atoms can replace both Al and Fe atoms. Such findings support previous anomalous X-ray scattering (AXS) re…
To assess the challenge of affordable technology, present synthetic strategies can be extended to new low-cost synthesis and processing methods that have potential to tailor the properties of the materials. Here we report, a novel method for the synthesis of mesocarbon microbeads (MCMB) through a pre-processing involv…
By employing the nonequilibrium Green's function technique, we study the thermal-induced spin-Seebeck transport through a chiral double-stranded DNA (dsDNA) connected to a normal-metal and a ferromagnetic lead. How the main parameters of the dsDNA-based system influence the spin-Seebeck transport is analyzed at length…
In this study, 3-methyl-1,2,4-triazolyl chitosan (MTACS) and 3-chloromethyl-1,2,4-triazolyl chitosan (CMTACS) were prepared via cyclization of acyl thiourea chitosan (TUCS). Their structures were confirmed by FT-IR, 1H-NMR, elemental analysis, DSC, XRD, and SEM. The conformations were predicted using the Gaussian 09 p…
Traditionally computational methods have been employed to explain the observation of novel properties in materials. The use of computational models to anticipate the onset of such properties in quantum dots (QDs) a priori of their synthetic preparation would facilitate the rapid development of new materials. We demons…
Glasses doped with Er and Yb show strong luminescence around 1530 nm, which makes them attractive luminophores for the preparation of multifunctional optical components. This article is focused on the influence of ZnO on the optical and luminescence properties of Er-Yb zinc-silicate glasses. The influence of silver do…
Abstract Two CeO 2 catalysts were fabricated by dry ball milling in the absence or presence of organic ligand, denoted as CeO 2 ‐A and CeO 2 ‐B, respectively, and tested for selective catalytic reduction of NO by NH 3 (NH 3 ‐SCR). It was found that the CeO 2 ‐B catalyst exhibited high NH 3 ‐SCR activities as well as h…