People | Locations | Statistics |
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Ferrari, A. |
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Schimpf, Christian |
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Dunser, M. |
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Thomas, Eric |
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Gecse, Zoltan |
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Tsrunchev, Peter |
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Della Ricca, Giuseppe |
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Cios, Grzegorz |
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Hohlmann, Marcus |
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Dudarev, A. |
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Mascagna, V. |
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Santimaria, Marco |
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Poudyal, Nabin |
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Piozzi, Antonella |
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Mørtsell, Eva Anne |
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Jin, S. |
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Noel, Cédric |
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Fino, Paolo |
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Mailley, Pascal |
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Meyer, Ernst |
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Zhang, Qi |
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Pfattner, Raphael | Brussels |
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Kooi, Bart J. |
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Babuji, Adara |
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Pauporte, Thierry |
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Schneider, J.
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (32/32 displayed)
- 2022Strategies for damage tolerance enhancement in metal/ceramic thin films: Lessons learned from Ti/TiNcitations
- 2022Microstructure, grain boundary evolution and anisotropic Fe segregation in (0001) textured Ti thin filmscitations
- 2022Microstructure evolution in Inconel 718 produced by powder bed fusion additive manufacturingcitations
- 2022Dislocation-mediated and twinning-induced plasticity of CoCrFeMnNi in varying tribological loading scenarioscitations
- 2021On the fracture behavior of Cr 2 AlC coatingscitations
- 2021Enhanced thermal stability of (Ti,Al)N coatings by oxygen incorporationcitations
- 2020Stable and Active Oxygen Reduction Catalysts with Reduced Noble Metal Loadings through Potential Triggered Support Passivationcitations
- 2020Transition Metal-Carbon Bond Enthalpies as Descriptor for the Electrochemical Stability of Transition Metal Carbides in Electrocatalytic Applicationscitations
- 2019Low-Cost Fabrication of Tungsten-Rhenium Alloys for Friction Stir Welding Applicationscitations
- 2019Effects by Different Microstructure and Texture of Hot Band on the Evolution of Microstructure and Texture after Cold Rolling and Final Annealing of Ferritic FeSi Steels
- 2018Ab initio guided low temperature synthesis strategy for smooth face–centred cubic FeMn thin filmscitations
- 2018Volatile and intermediate volatility organic compounds in suburban Paris: variability, origin and importance for SOA formationcitations
- 2018Experimental study of the role of physicochemical surface processing on the IN ability of mineral dust particlescitations
- 2018Surface modification of mineral dust particles by sulphuric acid processing: implications for ice nucleation abilitiescitations
- 2017Microstructure, mechanical properties and friction behavior of magnetron-sputtered V-C coatingscitations
- 2016Cloud water composition during HCCT-2010: Scavenging efficiencies, solute concentrations, and droplet size dependence of inorganic ions and dissolved organic carboncitations
- 2016Critical assessment of the post-breakage performance of blast loaded laminated glazing: Experiments and simulationscitations
- 20153D composite reinforcement meso F.E. analyses based on X-ray computed tomographycitations
- 2014Synthesis, characterization and p–n type gas sensing behaviour of CuFeO 2 delafossite type inorganic wires using Fe and Cu complexes as single source molecular precursorscitations
- 2014Meso-scale FE analyses of textile composite reinforcement deformation based on X-ray computed tomographycitations
- 2014Combined effect of light harvesting strings, anti-reflective coating, thin glass, and high ultraviolet transmission encapsulant to reduce optical losses in solar modulescitations
- 2012Process for coating metallic surfaces with an anti-corrosive coating
- 2012Influence of the real geometry of the protrusions in micro textured surfaces on frictional behaviourcitations
- 2012In situ observation of cavitation in crossed microchannelscitations
- 2012Processing of nanostructured zirconia composite ceramics with high aging resistance
- 2008Process for coating fine particles with conductive polymers
- 2008High precision laser structuring of micro forming tools ; Hochgenaue Laserstrukturierung von Mikroabformwerkzeugen
- 2007Process chains for the production of micro-structured functional surfaces in plastics and metals
- 2004Electrochemical micromachining of steel and nickel-base superalloys
- 2004microSINTERING - ein neues Verfahren der Mikrobearbeitung
- 2003Synthesis, Processing and characterization of new high-performance polymers for use in integrated optics
- 2002New triazine containing polymers for use in integrated opticscitations
Places of action
article
Enhanced thermal stability of (Ti,Al)N coatings by oxygen incorporation
Abstract
Thermal stability of protective coatings is one of the performance-defining properties for advanced cutting and forming applications as well as for energy conversion. To investigate the effect of oxygen incorporation on the high-temperature behavior of (Ti,Al)N, metastable cubic (Ti,Al)N and (Ti,Al)(OxN1-x) coatings are synthesized using reactive arc evaporation. X-ray diffraction of (Ti,Al)N and (Ti,Al)(OxN1-x) coatings reveals that spinodal decomposition is initiated at approximately 800°C, while the subsequent formation of wurtzite solid solution is clearly delayed from 1000°C to 1300°C for (Ti,Al)(OxN1-x) compared to (Ti,Al)N. This thermal stability enhancement can be rationalized based on calculated vacancy formation energies in combination with spatially-resolved composition analysis and calorimetric data: Energy dispersive X-ray spectroscopy and atom probe tomography data indicate a lower O solubility in wurtzite solid solution compared to cubic (Ti,Al)(O,N). Hence, it is evident that for the growth of the wurtzite, AlN-rich phase in (Ti,Al)N, only mobility of Ti and Al is required, while for (Ti,Al)(O,N), in addition to mobile metal atoms, also non-metal mobility is required. Prerequisite for mobility on the non-metal sublattice is the formation of non-metal vacancies which require larger temperatures than for the metal sublattice due to significantly larger magnitudes of formation energies for the non-metal vacancies compared to the metal vacancies. This notion is consistent with calorimetry data which indicate that the combined energy necessary to form and grow the wurtzite phase is larger by a factor of approximately two in (Ti,Al)(O,N) than in (Ti,Al)N, causing the here reported thermal stability increase.