Three commercially available chromium carbide-based powders with different kinds of matrix (Cr3C2-25%NiCr; Cr3C2-25%CoNiCrAlY and Cr3C2-50%NiCrMoNb) were deposited by an HVOF JP-5000 spraying gun, evaluated and compared. The influence of heat treatment on the microstructure and properties, as well as ...

A series of perfluorosulfonic membranes is screened for application in vanadium redox flow batteries (VRFB): membranes of constant thickness 50 μm with different ion-exchange capacities ranging from 0.56 to 1.15 mol eq. g−1 . Diffusion flux of each vanadium ion occurring in VRFB el...

For the most part, the “publish or perish” paradigm has inevitable implications on the quality of research published because the scientific results are evaluated by quantity and not by quality. The pressure for multiple publication results in creation of so-called predators journals act...

This paper is focusing on simulation and analyzing of S-band multi-wavelength Brillouine Raman fiber laser performance utilizing fiber Bragg grating and Raman amplifier in ring cavity. Raman amplifier average power model is employed for signal amplification

The first principles study of the (001) two symmetric n-type interfaces between two insulating perovskites, the nonpolar SrTiO3 (STO), and the polar

We report on a comprehensive theoretical investigation of the physical properties of the cubic MgCu2- type binary Laves phases TbCo2 and TbFe2 compounds. The density functional full-potential linearized augmented planewave (FP-LAPW) method was used

Thermoelectric properties of materials are intimately related to their electronic band structure. Com- bining first- and second-principles calculations, we have obtained the transport properties for the spin- up and spin-down electrons of the laves phase TbFe2 and TbCo2 compounds

Co-doped ZnO nanostructures synthesized on glass substrate have been prepared using Pulsed Laser Deposition (PLD) technique. Scanning Electron Microscopy (SEM) and X-Ray diffraction (XRD) have utilized for characterization and analysis

A theoretical band structure calculation for lead nitratehydroxide Pb16(OH)16(NO3)16 single crystal was performed based on the experimental crystallographic data obtained by Changetal. Calculations exhibit that the conduction bandminimum (CBM) is situated at Γ the center of the Brillouin zone (BZ)...

Three different polymer nanocomposites were prepared using clay modified with tetraoctylammonium (4C8) surfactant. The dispersion of clay silicate layers were studied using X-ray diffraction (XRD) and small angle scattering (SAXS). Free volume cavity sizes were studied with positron annihilation lifet...

Composite membranes based on Nafion (N115) loaded with furfuryl alcohol (FA) were prepared by in situ acid-catalyzed polymerization technique, with the aim to improve the ionic conductivity of Nafion membranes. The functionalization, thermal stability, electrical properties and mechanical strength of&...

We present measurements of the optical properties of crystalline PbIn6Te10. The samples are grown in the form of parallelepipeds of size _5 _ 3 _ 0.3 mm3. The absorption coefficient a(hn) shows an exponential behavior with energy in the energy range 0.82–0.99 eV followed by&#x...

The superconducting phase in iron-based high-Tc superconductors (FeSC), as in other unconventional superconductors such as the cuprates, neighbors a magnetically ordered one in the phase diagram. This proximity hints at the importance of electron correlation effects in these materials, and Hund’s...

The photocatalytic, structural and transport properties of the newly synthesized sulfide oxide CaZnSO and SrZnSO compounds are comprehensively investigated by means of first and second-principles calculation in order to explain the semiconductor's 'photoexcitation' state mechanism in CaZnSO and ...

The combination of momentum microscopy (high resolution imaging of the Fourier plane) with an imaging spin filter has recently set a benchmark in k-resolution and spin-detection efficiency. Here we show that the degree of parallelization can be further increased by time-of-flight energy ...

A doped europium polymorph based on phosphor with a structure of SrSi2O2N2 was investigated using the density functional theory as implemented in the full potential linear augmented plane wave method. The exchange correlation was described within the generalized gradient approximation added ...

The under-pressure behaviour of mechanical, electronic and optical properties of calcium titanate and its ground state thermoelectric response. In this study the elastic, electronic, optical and thermoelectric properties of CaTiO3 peroxide were investigated using initial calculations

Using the full-potential linearized augmented-plane wave method, the electronic structure and thermoelectric properties of Ag2Sb2O6 and Cd2Sb2O7compounds have been explored. The modified Becke–Johnson potential was applied to treat the exchange–correlation energy term. The electronic band structures reveal that...

Electronic, optical and thermo-electric properties of two quaternary chalcogenides SnGa2GeX6 (X = S, Se) have been studied by using density functional theory. Modified Becke-Johnson exchange potential (mBJGGA) was used to calculate the band gaps of these compounds. Both compounds show pseudo ...

As a result of emerging economies, demand for electricity is growing. However, the issue of even electricity coverage during the day is also related to this. This problem should be solved by the so-called electric energy converters in the form of classical accumulators, fuel c...