Nazarov, R.; Hickel, T.; Neugebauer, J.: Ab initio study of H-vacancy interactions in fcc metals: Implications for the formation of superabundant vacancies. Physical Review B 89 (14), 144108 (2014)
Glensk, A.; Grabowski, B.; Hickel, T.; Neugebauer, J.: Breakdown of the Arrhenius law in describing vacancy formation energies: The importance of local anharmonicity revealed by Ab initio thermodynamics. Physical Review X 4 (1), 011018 (2014)
Neugebauer, J.; Hickel, T.: Density functional theory in materials science. Wiley Interdisciplinary Reviews-Computational Molecular Science 3 (5), pp. 438 - 448 (2013)
Ouyang, Y.; Tong, X.; Li, C.; Chen, H.; Tao, X.; Hickel, T.; Du, Y.: Thermodynamic and physical properties of FeAl and Fe3Al: An atomistic study by EAM simulation. Physica B-Condensed Matter 407 (23), pp. 4350 - 4536 (2012)
Schick, M.; Hallstedt, B.; Glensk, A.; Grabowski, B.; Hickel, T.; Hampl, M.; Gröbner, J.; Neugebauer, J.; Schmid-Fetzer, R.: Combined ab initio, experimental, and CALPHAD approach for an improved thermodynamic evaluation of the Mg–Si system. Calphad: Computer Coupling of Phase Diagrams and Thermochemistry 37, pp. 77 - 86 (2012)
Hickel, T.; Grabowski, B.; Körmann, F.; Neugebauer, J.: Advancing density functional theory to finite temperatures: Methods and applications in steel design. Journal of Physics: Condensed Matter 24, 053202 (2012)
International researcher team presents a novel microstructure design strategy for lean medium-manganese steels with optimized properties in the journal Science
Within this project, we will use a green laser beam source based selective melting to fabricate full dense copper architectures. The focus will be on identifying the process parameter-microstructure-mechanical property relationships in 3-dimensional copper lattice architectures, under both quasi-static and dynamic loading conditions.
Oxides find broad applications as catalysts or in electronic components, however are generally brittle materials where dislocations are difficult to activate in the covalent rigid lattice. Here, the link between plasticity and fracture is critical for wide-scale application of functional oxide materials.
Copper is widely used in micro- and nanoelectronics devices as interconnects and conductive layers due to good electric and mechanical properties. But especially the mechanical properties degrade significantly at elevated temperatures during operating conditions due to segregation of contamination elements to the grain boundaries where they cause…
In this project we work on correlative atomic structural and compositional investigations on Co and CoNi-based superalloys as a part of SFB/Transregio 103 project “Superalloy Single Crystals”. The task is to image the boron segregation at grain boundaries in the Co-9Al-9W-0.005B alloy.