Materials Literature
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The problem of software creation for the analysis of transient temperature field in cold rolling of metals is under consideration. Firstly, the mathematical model of the process of heating the strip and rolls at cold rolling it is proposed. This model assumes that the generation of heat during the rolling takes place…
Abstract C31H30N4NiO8, triclinic, P1̄ (no. 2), a = 9.687(2) Å, b = 11.145(2) Å, c = 15.704(3) Å, α = 70.304(2)°, β = 89.859(2)°, γ = 73.906(2)°, V = 1525.9 Å3, Z = 2, Rgt(F) = 0.0320, wRref(F2) = 0.0859, T = 296 K.
Nanostructured Aluminum (Al) doped Zinc Oxide (ZnO) thin films based ultra-violet (UV) sensors were prepared on glass substrates using immersion technique at different immersion times. Surface morphology results as characterized by scanning electron microscope (SEM) show that all prepared nanostructured Al doped ZnO w…
Le contrôle fin de la puissance et l’arrêt des réacteurs nucléaires sont assurés par des dispositifs mobiles, grappes de contrôle en REP ou barres de commande en RNR, qui contiennent les matériaux absorbants neutroniques. Ces derniers sont ainsi le siège de réactions nucléaires induisant des modifications importantes…
With micron Al90Mn9Ce1 alloy powder clad by TiO2 nanopowder, a dense closed micro-cellular ceramics structure was fabricated. The alloy composite was filled inside by spark plasma sintering at temperature 793 K, and with the composite density of 98.2%. Micro-temperature area of Al90Mn9Ce1/ TiO2 matrix was simulated th…
Dots and spots are one of the easiest motifs to create – and they can be used for exploring many different concepts; including pattern, colour, size and shape. Hilary White explains…
Results of the experimental investigation of the acoustic properties of titanium nickelide alloy (speed of ultrasound and ultrasonic attenuation factor) are presented. The approximating equations for the temperature dependences of experimental data on the speed of sound, relative temperature expansion, and the density…
Sol-gel method was applied to synthesize nano-TiO2 particles doped with metal and non-metallic elements. Nano-TiO2 particles were doped at different calcinations’ temperatures with S and Fe, Ce and La, respectively. A comparison was performed on the effect of different metallic elements on nano-TiO2 particles doped wi…
The transformation behavior of Nb-V micro-alloyed low carbon steel during continuous cooling was studied through thermomechanical simulator and metallographic analysis. The results show that the dynamic CCT diagrams shift to the left and upper compared with the static ones, the begin temperature of γ→α transition is g…
In this experiment the tensile strength of bamboo carbon- polyvinyl formal biological carrier (BCPFBC) were tested. The optimal parameters are as follow: 6ml of sulfuric acid, 4ml of formaldehyde, 2g of bamboo carbon dosage, 40°C of reaction temperature, and 2.1N.mm-2 of BCPFBC tensile strength.
Therapeutic efficacy was evaluated by comparing survival times of treated animals with untreated animals and control groups. The mean survival time for animals receiving a single treatment of Drug-NC followed by RF exposure was 25.1 days, compared to 15.2 days for untreated and control groups. A two-cycle treatment pr…
Three groups of bronze based composites with different amounts of slide additive (graphite) and friction additives (SiC and SiO2) were prepared by powder metallurgy technique. The corrosive wear behaviours of the resulting composites in electrochemical aqueous solutions, namely, acidic rain, neutral rain and wastewate…
In this work, desorption of hydrogen from hydrogenated single walled carbon nanotubes (SWCNTs) functionalized with borane is discussed. A hydrogen storage medium based on SWCNTs functionalized with borane is designed. The SWCNTs are functionalized with borane (BH3) using LiBH4 as the precursor by solution cast method.…
The traditional high-voltage high-frequency transformer has a drawback of low power density due to the rigorous requirements of high voltage insulation. This paper proposes a new configuration for the magnetic core based on planar EE cores. The parallel connection of planar cores was adopted as a unit, and several uni…
Zn-Al alloys are used mainly because of their tribological properties as a material alternative to bronze, cast iron and aluminum alloys in bearings, and as a structural material. Improved properties of Zn-Al alloys can be obtained by the addition of copper , silicon and using of heat treatment. Tribological propertie…
ZnO nanorods were prepared by immersion method deposited onto Silicon (Si) and gold-seeded Si (Au/Si) substrate. The annealing temperatures were varied from 400, 500 and 600 °C. The effect of annealing temperature on the surface morphology and photoluminescence characteristics was investigated. The samples were charac…
The electrochemical behavior of a new magnesium alloy (AZ61) containing rare earth elements-cerium (Mg-Al-Zn-Mn-Ce alloys) was investigated in 3% NaCl electrolyte using electrochemical methods such as linear sweep voltammetry, Tafel curves and electrochemical impedance spectroscopy. Scanning electron microscopy was us…
The samples of Gd1-xPrxBa2Cu3O7-δ with compositions x = 0.0, 0.1 & 0.3 were prepared by ceramic route. The XRD study of all samples is carried out. The XRD studies of the samples prepared by ceramic route show GdPr-123 system have an orthorhombic pervoskite structure. The lattice parameters, oxygen content, volume of…
A magnetic field distribution variable-type facing target sputtering system has been newly devised. The magnetic field distribution between facing targets can be easily changed by moving a magnet without breaking the vacuum. By changing the magnetic field distribution between facing targets, Niobium deposition rate ha…
Methodological aspects of fretting and fretting-corrosion research of metallic biomaterials are presented in this article. At the Faculty of Mechanical Engineering Technical University of Bialystok tribometer device was constructed to test the fretting phenomenon with flat-on-flat contact configuration [. Based on the…