Materials Literature
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The modeling tasks of thermal effect of power impulse action on a surface of the plate of VК10 (КS) alloy were considered and solved. As modeling tasks for homogeneous equations of parabolic and hyperbolic heat conductions, a wave equation in a cylindrical solid of final sizes with boundary conditions of III kind were…
For increase of sinter productivity, it is important to design sinter mixture granulation.
We have fabricated Mg2Si pn-junction diodes by short-period (30 s and 1 min) annealing between 400 and 480 °C and evaluated the pn-junction depth by EBIC and VC observations. The pn-junction depth of approximately 6 and 30 µm was formed for the annealing conditions of 400 °C, 30 s and 480 °C, 1 min, respectively. By c…
In this work, a sensitive and selective fluorescent molecularly imprinted polymer (MIP) was developed for detection of hepatocellular carcinoma (HCC) biomarker i.e. alpha feto protein (AFP) using Ag/AgCl as platform. Here, the carbon dots and Ag/AgCl nanoparticles were functionalized with vinyl groups and used as func…
Single phase SnO (tin monoxide) has been synthesized by a simple one-step solvothermal synthesis method. Formation of single phase is confirmed both by powder X-ray diffraction (XRD) and Raman scattering studies. From the simultaneous thermogravimetric (TGA) – differential thermal analysis (DTA) it is seen that SnO is…
Blue light emitting neodymium (Nd) doped dicalcium (Ca2SiO4) silicate nanostructures were prepared for the first time via ultrasound assisted sonochemical synthesis route using cetyltrimethylammonium bromide (CTAB) surfactant. The obtained final product was well characterized. The powder X-ray diffraction (PXRD) profi…
SnS thin films were prepared using chemical spray pyrolysis (CSP) technique. p-type SnS films with direct band gap of 1.33 eV and having very high absorption coefficient were obtained with the optimized deposition conditions. In this paper we focus on investigating the uniformity and phase purity of the hence deposite…
The paper presents the results of design, implementation and operational observations of nonstandard track structures with variable stiffness in joint sections of bridges and tunnels with regular subgrade. Technical and economic efficiency evaluation based on long-term real data analysis was carried out. It was experi…
A mixed product of lithium metasilicate (74%) and minor proportions of calcium carbonate, lithium carbonate and calcium hydroxide was prepared by hydrothermal synthesis from waste green container glass in 4 M lithium hydroxide solution at 125 °C. The reaction product was characterised by powder X-ray diffraction and F…
A porous Ni film with numerous through-holes was prepared by electroplating deposition for use as a novel metal support for Pd alloy membranes. The porous Ni film with 5 μm thickness maintained its shape after calcination in air at 500℃ for 1 h, which indicated its high thermal stability despite being electrodeposited…
The aim of this study was to predict the work strain indicators for construction workers and to work out measures for prevention of strain at work. Subjective and objective research methods were utilized in the research, including survey, work intensity measurements (Borg Scale), work strain index, fatigue index and w…
The purpose of this work is the characterization of the fracture behaviour of giant magnetostrictive materials subjected to a magnetic field. Both experimental and numerical investigations have been performed, focusing on iron and rare earth alloys, such as the commercially named Terfenol-D. Tests have been carried ou…
High quality stoichiometric VO 2 films were grown on single crystal sapphire substrates by molecular beam epitaxy (MBE), the film thicknesses were precisely controlled on the nanoscale ranging from 15 nm to 60 nm. For the optimized sample, a distinct reversible metal-insulator transition (MIT) with abrupt resistance c…
: A finite elastic hollow and solid cylinders are considered. The bottom faces of the cylinders are fixed, the upper faces are free from stress. The tangent axisymmetric loading is applied along their cylindrical surfaces. This leads to the torsion axisymmetric deformation. A system of N ring – shaped cracks is situat…
Cyclotron targets have made steady progress in terms of current capabilities, automated handling and application to isotopically-enriched material. These advances have followed a distinct trajectory at the University of Wisconsin, with the emphasis on maximizing the yield of the desired radionuclide within the strict…
Diffusion bonding process in low temperature is desirable for the manufacturing method of metal MEMS (Micro-Electronic-Mechanical Systems) such as metal micro-pump that the high proof stress is required. Severe plastic deformed metals having high grain boundary mobility are expected to bond in low temperature. Then, w…
The Shape Memory Alloy, Nickel-Titanium i.e. Nitinol is greatly lacking in published research about its properties. Both degradation through electronic actuation and degradation through heat actuation are lacking, as well comparison of them. This means that both inventors and manufacturers are missing important inform…
Carbon dioxide capture technologies and solid adsorbents have been a rapid development with the human face increasingly severe environmental problems. Layered double hydroxides (LDH) is a kind of intermediate-temperature solid adsorbent, which is expected to have a useful application prospect. In this review, the clas…
We show the first THz emission of a graphene based plasmonic antenna structure. Furthermore we present the minimum material requirements for an operational graphene antenna in terms of chemical potential μc and relaxation time τ.
4-aminotoluene is known as a good octane additive, the mixture of maleic acid diethyl ester and Succinate acid diethyl ester has good lubricating characteristics. The process of hydrogenation of maleic acid diethyl ester at atmospheric pressure in aqueous solution of 2-propanol over skeletal nickel and modified skelet…