| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Garbacz, Halina
Warsaw University of Technology
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (29/29 displayed)
- 2024A novel approach to enhance mechanical properties of Ti substrates for biomedical applicationscitations
- 2024Albumin suppresses oxidation of Ti-Nb alloy in the simulated inflammatory environment
- 2023The influence of microstructure and texture on the hardening by annealing effect in cold-rolled titaniumcitations
- 2022Surface Properties and Mechanical Performance of Ti-Based Dental Materials: Comparative Effect of Valve Alloying Elements and Structural Defectscitations
- 2020High-strength ultrafine-grained titanium 99.99 manufactured by large strain plastic workingcitations
- 2020Biological properties of a novel β-Ti alloy with a low young’s modulus subjected to cold rollingcitations
- 2020Effect of laser functionalization of titanium on bioactivity and biological responsecitations
- 2016Investigation of the degradation mechanism of catalytic wires during oxidation of ammonia processcitations
- 2014Anodic polarization of nanocrystalline titaniumcitations
- 2014Chemical modification of nanocrystalline titanium surface for biological applications
- 2013Investigation of degradation mechanism of palladium-nickel wires during oxidation of ammoniacitations
- 2013Analysis of two catalytic systems PtRhPd-PdAu and PtRh-PdAu after long-term exploitation
- 2012High cycle fatigue strength of hydrostatically extruded nanocrystalline CP titanium
- 2011Microstructure and mechanical properties of a Pt–Rh alloy produced by powder metallurgy and subjected to plastic workingcitations
- 2011Effect of laser treatment on the surface of copper alloyscitations
- 2010Fatigue properties of nanocrystalline titanium
- 2009Modifying the properties of the Inconel 625 nickel alloy by glow discharge assisted nitridingcitations
- 2007Ti - Al intermetallic layers produced on titanium alloy by duplex method
- 2006Effect of the Al<inf>2</inf>O<inf>3</inf> + Ni-Al multilayer on the mechanical properties of Inconel 600 alloycitations
- 2006Effect of surface treatment on the microstructure of TA6V
- 2006The influence of hydrostatic extrusion on the microstructure of 6082 aluminium alloy
- 2006Structure and properties of nanomaterials produced by severe plastic deformation
- 2006Influence of severe plastic deformation on the PLC effect and mechanical properties in Al 5XXX alloy
- 2005Structure and properties of Ti-Al intel-metallic layers produced on titanium alloys by a duplex treatment
- 2005Microstructure and mechanical properties of nanocrystalline titanium and Ti-Ta-Nb alloy manufactured using various deformation methodscitations
- 2005Grain refinement in aluminium and the aluminium Al-Cu-Mg-Mn alloy by hydrostatic extrusion
- 2005Microstructure and mechanical properties of nickel deformed by hydrostatic extrusion
- 2005Hydrostatic extrusion and nanostructure formation in an aluminium alloycitations
- 2003Microstructural changes during oxidation of titanium alloyscitations
Places of action
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article
Investigation of degradation mechanism of palladium-nickel wires during oxidation of ammonia
Abstract
The process of oxidation of ammonia proceeds in 800–900 °C with high reactivity hydrogen discharge. Extremely aggressive environment and temperature require using the most chemically resistant materials with catalysis properties. One of the main groups of those materials is palladium–nickel alloys. In our investigation we focused on analysis of PdNi5 degradation during catalysis process. The investigation was performed on 78 μm diameter wires after long exposition to chemically aggressive environment. The samples were prepared with focused ion beam (FIB) system. The observations of surface and wire cross sections were executed using a scanning electron microscope (SEM) with energy dispersive spectroscopy (EDS) device, which allowed defining chemical composition. The effect of a grain orientation on sensitivity to reaction with ammonia gas was tested by mapping with electron backscatter diffraction (EBSD) techniques. Significant change of wire cross section after long exposition was determined by 3D X-ray computer tomography (XCT). The obtained results can be basis of further investigation on improvement of strength of PdNi alloys in high temperature chemical application.