The interest in studying the synthesis of an Al–Cr alloy system by non-equilibria processes is due to formation metastable or quasicrystalline phases when rapid solidification has been utilized. Similarly, quasicrystals reported a much lesser extent mechanical alloying technique was applied. In present research, mixture powders Cr and Al (both elements with purity 99.99%) compositions Al-5 7.5 ...

We use neutron powder diffraction to investigate the magnetic and crystalline structure of Cr$_2$GaN. A phase transition is identified at $T \approx 170$ K, whereas no trace structural observed down 6 K. Combining Rietveld refinement with irreducible representations, spin configuration Cr ions in Cr$_2$GaN depicted as an incommensurate sinusoidal modulated characterized by a propagating vector ...

the vigna subterranean (l.) verdc hull’s (vsvh) potential to remove cr(vi) ions from aqueous solutions was investigated. the biosorbent was characterised by ftir, sem-edx and xrf before and after exposure to cr(vi). the surface comprised of phenolic, carboxylate, sulphonate, carboxyl, ammines, silica, silanol, phosphite esters, alkyl and hydroxyl functional groups responsible for cr(vi) removal...

Trace element analyses of marine sediments provide important information on past oceanographic and climatic changes. Five samples consisting of grey to black marls with layers of carbonate nodules (so called “Terre Noires” from a 102 m long profile from Oze, Southern France) were prepared in three different ways to find the most appropriate preparation technique for major, minor and trace eleme...

Pistachio shell powder supported nano-zerovalent copper (ZVC@PS) material prepared by borohydride reduction was characterized using SEM, FTIR, XRD, TGA/DTA, BET, and XPS. XPS revealed the to consist of a core-shell structure with CuO Cu(0) core particle size 40–100 nm spherical morphology aggregated on PS biomass. ZVC@PS found contain 39% (w/w %) Cu onto pistachio Batch sorption Cr(VI) from aqu...