Materials Literature
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Investigation of Wear Resistant of Low-Alloyed and Chromium Cast Steel Results of investigations of wear resistant of two species of cast steel were introduced in the article (low-alloyed and chromium cast steel) on the background of the standard material which was low alloy wear resistant steel about the trade name C…
In this paper, optical, the chemistry stability, and glass transformation, softening temperature were studied on Bi2O3-SiO2-ZnO-B2O3 system glass doped with 2wt.%、4wt.%、6wt.% and 8wt.%TiO2. The results showed that glass surface has no stripes and defects with transmittance between 20%-50%. Moreover, with the increasin…
The objective of this study was to investigate the effect of coconut oil and different surfactants on stability of nanoemulsions that were prepared by simple homogenization (13,500 rpm, 10 minutes). Coconut oil, sunflower oil and castor oil at the concentration of 20-40% w/w were used as the oil phase. Polysorbate 20,…
The first heavy fermion superconductor CeCu 2 Si 2 is still only partially understood. At high pressures, superconductivity is supposed to be mediated by a different mechanism than at ambient pressure, where spin fluctuations most likely act as pairing glue. We have obtained and analyzed new resistivity data up to 7 G…
Porous alumina (Al2O3) ceramics were fabricated by powder injection moulding process. The feedstocks, composed of 44 50 vol% of Al2O3 powder, could be prepared using a composite binder, consisting of polyethylene glycol (PEG) and polyvinyl butyral (PVB). Debindings were carried out using a combination of water leachin…
ZnO nanoparticles were successfully synthesized by using zinc dust waste derived from hot-dip galvanizing process as a starting materials via simple hydrothermal method. The zinc dust powder was dissolved in nitric acid, adjusted pH with NaOH and hydrothermally treated at 120-170°C in an oven. The resultant products w…
Self-aligned Si-based quantum dots (QDs) with an areal density as high as ∼1013 cm-2 have been successfully fabricated on GeH4-adsorbed ultrathin SiO2 by the process sequence consisting of Si-QDs formation by controlling low-pressure chemical vapor deposition (LPCVD) using pure Si2H6, selective Ge-LPCVD from 5% GeH4 d…
The accurate setting of electromigration (EM) design guidelines early is necessary to achieve chip-level fail goals. The issue is even more critical with the recognition of the percentage fail as a stochastic issue based on the individual EM elements. The challenge is the degree to fix those elements prior to the know…
This paper shows that the secondary spectrum in a two-component system made from glasses with ordinary dispersion behavior can be eliminated by computer modelling. The necessary conditions for this are an air gap between the components that is commensurable with the focal length of the system and large longitudinal ch…
GaAs pHEMT thermal reliability test structures are introduced which incorporate on-wafer heating using Thin Film Resistors (TFR) and a DC gate metal temperature measurement method. Results from 3D Finite Element Method (FEM) thermal simulations are compared with measurements and used to investigate the frequency respo…
In the present work, the oriented nucleation origin of the recrystallized {h11}<1/h,1,2> fibre is characterized. Aiming to investigate the substructural evolution of <110>//RD fibre grains and {001}<110> grains in particular, a detailed microstructure and texture analysis is performed by high resolution orientation sc…
A silicon-nanocrsytal resonant-cavity light-emitting device (RCLED) is presented. The microcavity, made by a silicon nanocrystal layer inserted between a semitransparent Au reflector and a distributed Bragg reflector mirror, shows enhanced emission intensity by four times at resonance wavelength and 1/8 narrow emissio…
A theory concerning the coherent X-ray radiation of relativistic electrons crossing an artificial periodic medium in Laue scattering geometry has been constructed. Expressions describing the spectralangular characteristics of radiation in the Bragg scattering direction have been obtained and studied. Radiation is cons…
The effect of annealing temperature on the elemental composition and morphology of the Ni-containing coatings formed by plasma-electrolytic oxidation in sodium silicate electrolyte suspension with and without sodium oleate was studied in the range 750–850°C.
The effect of the structure and amount of the phase-transfer catalyst (quaternary ammonium salts) and the solvent effect on cyclopentene oxidation with an aqueous hydrogen peroxide solution in the liquid-liquid two-phase system was studied. The phase-transfer catalyst and solvent ensuring high reaction rate and high s…
Nanosized silver (Ag) was synthesized by reducing high concentration AgNO3 in N, N-dimethylformamide (DMF), in the presence of stabilizer polyvinyl pyrrolidone (PVP). PVP of two different molecular weights (MW=40000, 1300000) at the reaction temperature of 80°C and 100°C were tested for the effect on the formation of…
Variable angle spectroscopic ellipsometry (VASE) was employed to investigate the dielectric behaviors of Cu-Zn alloy films on silicon substrate prepared using direct current (DC) magnetron sputtering. The influence of the thickness and alloy composition on the dielectric properties of Cu-Zn alloys was studied. A diele…
The results of experimental study and computer simulation of SG-P-0.1 carbon-ceramic composite sputtering under 30 keV Ar + ion irradiation at normal incidence are presented. A comparison with the simulation data shows that taking into account the nanometric wave-like relief well describes an approximately threefold i…
We have applied non-linear optical method (second harmonic generation (SHG) and third harmonic generation (THG)) to monitoring the phase transformation in the iron telluride compounds. The experiment was performed in the reected geometry in which Temperature dependences of the SHG and THG have unambiguously shown that…
Carbonized cloth (CC) of various types was modified with silicododecamolybdic acid (SiMo), poly- o -phenylenediamine (PPD) and stratified composite thereof. As a full-value carbon material with highly developed surface, carbonized cloth with specific surface area about 15 m 2 /g shows good adsorption of SiMo from a so…