Hickel, T.; Al-Zubi, A.; Neugebauer, J.: Ab initio based prediction of phase diagrams: Application to magnetic shape-memory alloys. 9. Materialwissenschaftlicher Tag der Ruhr-Universtät Bochum, Bochum, Germany (2011)
Neugebauer, J.: Fully ab initio determination of free energies: Methodological challenges and applications. Conference on Computational Physics (CCP2011), Gatlinburg, TN, USA (2011)
Freysoldt, C.; Pfanner, G.; Neugebauer, J.: The dangling-bond defect in amorphous silicon: Insights from theoretical calculations of the EPR parameters. Workshop on Advanced EPR for material and solar energy research, Berlin, Germany (2011)
Izanlou, A.; Todorova, M.; Friák, M.; Palm, M.; Neugebauer, J.: Theoretical study of the environmental effect of H-containing gases on Fe–Al surfaces. FeAl2011, Discussion Meeting on the Development of Innovative Iron Aluminium Alloys, Lanzarote, Canary Islands, Spain (2011)
Neugebauer, J.: Doping and growth issues in group-III nitrides: An ab initio perspective. Workshop on III-Nitrides Growth, Characterization and Simulation, Berlin, Germany (2011)
Neugebauer, J.: Ab initio guided materials characterization and design. Science Vision for the European Spallation Source, Bad Reichenhall, Germany (2011)
Elstnerová, P.; Friák, M.; Neugebauer, J.: Enhancing mechanical properties of calcite by Mg substitutions - A Quantum-Mechanical Study. 12th International Symposium on Physics of Materials, Prague, Czech Republic (2011)
Neugebauer, J.: Ab initio based modeling of structural materials with superior properties: From a predictive thermodynamic description to tailored mechanical properties. EUROMAT 2011, Montpellier, France (2011)
Freysoldt, C.; Pfanner, G.; Neugebauer, J.: The Dangling-Bond Defect in Amorphous Silicon: Statistical Random Versus Kinetically Driven Defect Geometries. 24th International Conference on Amorphous and Nanocrystalline Semiconductors (ICANS 24), Nara, Japan (2011)
Gutierrez-Urrutia, I.; Dick, A.; Hickel, T.; Neugebauer, J.; Raabe, D.: Understanding TWIP steel microstructures by using advanced electron microscopy and ab initio predictions. International Conference on Processing & Manufacturing of Advanced Materials THERMEC 2011, Québec City, QC, Canada (2011)
Hickel, T.; Al-Zubi, A.; Neugebauer, J.: Chemical Trends for Phase Transitions in Magnetic Shape Memory Alloys Derived from First Principles. International Conference on Ferromagnetic Shape-Memory Alloys, ICFSMA’11, Dresden, Germany (2011)
International researcher team presents a novel microstructure design strategy for lean medium-manganese steels with optimized properties in the journal Science
The aim of the work is to develop instrumentation, methodology and protocols to extract the dynamic strength and hardness of micro-/nano- scale materials at high strain rates using an in situ nanomechanical tester capable of indentation up to constant strain rates of up to 100000 s−1.
In this project, we investigate a high angle grain boundary in elemental copper on the atomic scale which shows an alternating pattern of two different grain boundary phases. This work provides unprecedented views into the intrinsic mechanisms of GB phase transitions in simple elemental metals and opens entirely novel possibilities to kinetically engineer interfacial properties.
Within this project, we will use an infra-red laser beam source based selective powder melting to fabricate copper alloy (CuCrZr) architectures. The focus will be on identifying the process parameter-microstructure-mechanical property relationships in 3-dimensional CuCrZr alloy lattice architectures, under both quasi-static and dynamic loading…
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…