The method of solid hydrogen storage through integration in metal hydride compounds is a new, promising method. This research has succeeded synthesizing and characterizing the alloy Fe-Ti system planetary ball-mill process. Based on XRF analysis, it was found that composition Fe oxide content reached 56.22% while Ti 43.78%. FTIR study showed absorption at wavenumbers 900 cm-1 500 cm-1. Both are...

The suitability of the direct energy deposition process exothermic powders Fe-Ti in joining dissimilar metals to produce small parts a complete shape for various applications is considered. procedure commercial pure iron and titanium proportions modes are described. Optical microscopy SEM with EDX analysis, X-ray microhardness measurements laser-fabricated intermetallics applied. Intermetallic ...

The electronic structure and magnetic properties of pure and doped Fe 16 N 2 systems have been studied in the local-density (LDA) and quasiparticle self-consistent GW approximations. The GW magnetic moment of pure Fe 16 N 2 is somewhat larger compared to LDA but not anomalously large. The effects of doping on magnetic moment and exchange coupling were analyzed using the coherent potential appro...

First principles calculations are usually concerned with properties calculated at temperature 0 K. However, the industrially important materials are functioning at finite temperatures. To fill such a gap a first-principles based modeling of free energy has been developed in this thesis and finite temperature properties of different phases of Fe and Mn have been calculated and contrasted with av...

We analyse a sample of 24 damped Lyman-α (DLA)/moderate DLA systems at intermediate redshifts, 0.3 < zabs < 2.2, all with measurement of the weak Mn ii absorption lines, to investigate which elemental ratios could possibly be used as tracers of either dust depletion or nucleosynthesis effects. We applied a component-bycomponent analysis to the five systems of the sample with new observations an...

Complexation reactions between methylthymol blue and Fe , A l ,Ga , 1n a nd TI ions have been studied in buffer aqueous solutions of pH 5.0 at 2S°C by a spectrophotometric technique. The conditional stepwise stability constants of the resulting 1:l and 1:2 (metal-to-ligand) complexes were determined from the absorbance-mole ratio data at three different wavelengths of the visible sp...