Fe-Cr-Al alloy nanopowders were successfully prepared by electrical wire explosion method in ethyl alcohol media. The formation of FeCr-Al alloy nanopowder was monitored by X-ray diffraction. The alloy powders have spherical shape and nanometer size. The alloy powders prepared by the electrical wire explosion method have main crystal structures of bcc Fe-Cr alloy. The geometric mean diameter an...

Transmission electron microscopy (TEM) studies have been carried out on magnetron-sputtered coatings in the Al-rich region of the Al-Cu-Fe-Cr quasicrystalline phase field, focusing on the composition that exhibited the best tribological performance among a group of sputtered coatings. The size of the particles in the as-deposited coating is around 10 nm. The TEM experiments on annealed coatings...

9 The α α phase separation kinetics in a commercial Fe-20 wt% Cr-6% Al oxide dispersion-strengthened PM 1

We evaluated the levels of essential elements as Cu, Cr, Fe and Zn, and toxic elements as Al, Ni, Pb and Cd in a total of 40 samples of different legumes and 56 samples of different nuts, that are widely consumed in Spain. These elements were determined in the samples mineralized with HNO(3) and V(2)O(5), using electrothermal atomic absorption spectrometry (ETAAS) as the analytical technique. R...

This contribution deals with new geology, petrography, and bulk-rock/mineral chemistry of the poorly studied ultramafics Wadi Ibib–Wadi Shani (WI–WS) district, South Eastern Desert, Egypt. These are dismembered ophiolitic rocks that can be subdivided into serpentinites serpentinized peridotites. Primary minerals such as olivine pyroxene absent in serpentinites, but relics them occur Pseudomorph...

Nuclear resonant inelastic x-ray scattering spectra were measured for Fe in disordered body-centered-cubic alloys of Fe-Cr. Partial phonon density of states DOS curves were obtained from these data. These results, in conjunction with the results of Ruckert et al. Hyperfine Interact. 126, 363 2000 on Fe-Cr thin-film multilayers and alloys, were analyzed with a local-order cluster expansion metho...