The usefulness of stochastic algorithms to retrieve the exit-plane wave function from periodic high-resolution electron microscopic images is investigated. In contrast to “classical” focal series reconstruction methods which need approximately twenty input images, fully non-linear reconstructions of periodic wave functions are possible in most cases from only two images using stochastic algorit...

Using Ni60 alloy, C, TiN and Mo mixed powders as the precursor materials, in situ synthesized Ti(C,N) particles reinforcing Ni-based composite coatings are produced on Ti6Al4V alloys by laser cladding. Phase constituents, microstructures and wear properties of the composite coatings with 0 wt % Mo, 4 wt % Mo and 8 wt % Mo additions are studied comparatively. Results indicate that Ti(C,N) is for...

This study aims to manufacture and characterize titanium nickel alloys with different molybdenum (Ti–Ni–Mo) contents, focusing on the influence of these additions microstructure, mechanical properties, corrosion resistance. The relevance this work stems from lack research specific alloy absence reports in literature percentages above 2 at.%. Ti50Ni50−XMox were produced by plasma arc melting met...

bioleaching of spent refinery processing catalysts using adapted indigenous strains ofacidithiobacillus ferrooxidans to recover ni and mo, and the separation of ni from bioleaching liquor usingiron magnetic nanoparticles were optimized in this study. bioleaching optimization was performed usingcentral composite design (ccd) method to optimize temperature (32 to 38oc), initial ph (1.5 to 2), par...

Abstract High-temperature coal ash/flue gas corrosion behaviours of three nickel–iron based superalloys for boiler tubes with different Mo and W contents (1.8% + 1.2% S 1 alloy, 0.8% 0.2% 2 0.5% 2.2% 3 alloy) at 650 700°C were studied. The microstructure, phase compositions, morphologies together element distribution products investigated a metallographic microscope, scanning electron microscop...

Introduction Steam reforming is a process that converts hydrocarbon fuels into hydrogen and oxygenated carbon species. This process is important for catalytic hydrogen production and for direct electrochemical reforming of hydrocarbons over high temperature fuel cells, such as Solid Oxide Fuel Cells (SOFCs). One of the main problems associated with the process is that conventional reforming (el...

In an attempt to control the film composition, factors affecting the composition of Ni-Fe alloy deposits and their crystal structure have been analyzed as a function of bath composition, cathode current density, bath pH, temperature and an addition of citric acid. antimony electrode revealed that the deposition potential of Fe coincides with the potential where the abrupt increase of pH was obs...

Several formulations of alternative alloys have been proposed for the substitution of gold-based alloys used in Dentistry. Recently, a Ni-Cr-Ti-based alloy has been introduced. The purpose of this work was to verify the marginal adaptation obtained with one-piece superstructures for implant-supported prostheses obtained in Ni-Cr-Ti alloy, compared to a semi-noble alloy Pd-Ag. Eight superstructu...