Materials Literature
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Plasma induced damage on porous low-k dielectrics is a critical issue for lowering the interconnect RC delay in densely packed CMOS transistors. In this paper, we propose a new approach to protect the pores on porous organo-silicate glasses (OSG) during plasma process, so-called Gas Phase Pore Stuffing (GPPS).
The interaction between the Bi 3+ ion and gold is studied using the cluster metal surface model and the density functional method. The geometric and energy characteristics of the interaction between this ion and the gold surface are estimated. Its adsorption is accompanied by the transfer of a core part of the charge…
The results of numerical modeling of impurity concentration profiles of tungsten ions for discharges with ohmic heating (OH) on the T-10 tokamak with W limiter (for Z eff ≈ 1) are described. It is shown that in OH discharges the maximum values of relative concentrations for each tungsten ion state are located on their…
This paper presents the basic concepts regarding active power filters. An active filter generates a compensating signal that mitigates the harmonics, thus improving the power quality of the grid. Some of the most recent applications of these filters in several fields of electrical engineering are depicted. And a pract…
As it was mostly developed in a non-academic context, the literature on the blockchain often lacks of mathematical rigour. Therefore, fundamental computational problems of this new technology such as consensus, Byzantine fault tolerance and self-stabilization can not be fully looked into. In this work we use the princ…
A number of rare phosphates have been found in specimens from the Chalotskoe pegmatite deposit, Transbaikal region, Russia: väyrynenite, MnBe[PO 4 ](OH,F); parascholzite, CaZn 2 [PO 4 ] 2 · 2H 2 O; messelite, Ca 2 (Fe 2+ ,Mn)[PO 4 ] 2 · 2H 2 O; eosphorite, MnAl[PO 4 ](OH) 2 · H 2 O; moraesite, Be 2 [PO 4 ](OH)4H 2 O;…
Abstract It has been found that “hot” high-fluence Zn+ implantation leads to the formation of the extended layer with zinc-based nanoclusters of size up to 10 nm in SiO2 film. The precipitate’s crystalline nature is confirmed by HRTEM studies. Post-implantation annealing at 700°C for 60 min leads to Zn atoms redistrib…
A new mineral was discovered in Cr–V-bearing marbles of the Sludyanka Complex from the Pereval marble quarry, Sludyanka district, southern Baikal region, Russia. It was named vanadio-pargasite as vanadium-bearing analog of pargasite according to the amphibole supergroup classification and CNMNC recommendations. Black…
Abstract A kinetic lattice Monte Carlo model is used to study the Ga droplets self-propelled motion along GaAs(111)A and (111)B surfaces during the initial stage of high-temperature annealing. An estimation of the droplet velocity, running along (111)A and (111)B surfaces, in a wide temperature range, is carried out.…
Introduction: The next generation of wound dressings will actively participate in the wound healing process, helping the body to heal itself. For deep and/or chronic wounds a dermal scaffold is often required prior to the application of a skin graft or other therapy that encourages re-epithelialisation and the restora…
Abstract Metastable equilibrium of the α- and α'-phases comprising solid solutions of carbon in iron with cubic and tetragonal lattices, respectively, has been analyzed using the Zener–Khachaturyan theory of tetragonality of martensite of Fe–C alloys. The condition of the absence of carbide precipitates was imposed, a…
Abstract Within this work we study the plasma-assisted molecular beam epitaxy of GaN on Si(111) substrate at different substrate temperatures and III/V flux ratios. We present the model, which gives the analytical expressions for the boundaries between the three growth modes: compact layer, nanowires, and absence of g…
Physical quantities affecting the magnitude of magnetocaloric effect in ferro- and ferrimagnetic materials with first and second order magnetic phase transitions are considered. Governing equations for the main characteristics of the magnetocaloric effect are given and analyzed. Their outcomes are compared with the ex…
Abstract Commonly, a surface wave traveling along the interface between isotropic media has a spin moment that lies in the plane of the interface and is perpendicular to the direction of propagation. Here, we show that, if one of the two media is a topological insulator, the spin moment vector has a component that is…
We investigate diffusivity and conductivity in the context of electronic transport in crystalline cadmium oxide by knowing the electron concentration in CdO as a function of the partial pressure of oxygen in the deposition process of the material in question. From the chemical kinetics of the reaction by which CdO is…
Abstract A brief review of the systematic studies of the structural and phase transformations and properties of alloys based on titanium nickelide and alloyed with Fe, Co, Cu, Zr, Hf, Pd, Pt, and Au is presented. Generalized phase diagrams of martensitic transitions are built. It is shown that alloying with a third co…
Abstract Capabilities of modern methods of computer simulation of the phase composition and structure of the low-alloyed steels with carbonitride hardening at the solidification, austenization, and hot deformation of an ingot are briefly reviewed.
Non-ionic surfactant block copolymer of polypropylene glycol flanked by two blocks of polyethylene glycol known as pluronic. Pluronic F127 or poloxamer 407 is used to improve the solubility and enhance the bioavilability of many drugs. The interactions of pluronic F127 was studied in Rhodamine B dye and effects of ino…
Abstract Samples of 0.6 mm thickness made from a VTI-4 alloy (Ti–21Al–23Nb–0.7Zr–1.4V–0.4Mo–0.31Si, at %) are treated by heating in the 850–950°C range, then continuously cooled in a gaseous atmosphere at rates close to 2.5 K/s and cold-rolled to a reduction degree of 60%. This study has established the cause of deter…
Abstract The oscillations of the mass velocity of melting during cyclic electroslag remelting of ChS-82 steel ingots under laboratory and industrial conditions are studied. The data on the mass velocity, the remelting current, and the furnace voltage that form by an automatic control system during the process in the f…