Grabowski, B.; Hickel, T.; Neugebauer, J.: From ab initio to materials properties: Accuracy and error bars of DFT thermodynamics. Euromat 2007, European Congress on Advanced Materials and Processes, Nürnberg, Germany (2007)
Hickel, T.; Grabowski, B.; Uijttewaal, M.; Neugebauer, J.: Ab initio prediction of structural and thermodynamic properties of magnetic shape memory alloys. Euromat 2007, European Congress on Advanced Materials and Processes, Nürnberg, Germany (2007)
Friák, M.; Neugebauer, J.: Ab initio study of the anomalous volume-composition effect in Fe–Al and Fe–Ga alloys. Euromat 2007, Nürnberg, Germany (2007)
Uijttewaal, M.; Hickel, T.; Neugebauer, J.: Ab initio investigation of temperature dependent effects in Ni_{2}MnGa: The pre-martensitic transition. Convention of the SPP 1239, Castle Eichholz in Wesseling, Germany (2007)
Friák, M.; Sander, B.; Ma, D.; Raabe, D.; Neugebauer, J.: Theory-guided design of Ti-binaries for human implants. XVI. International Materials Research Congress, Cancun (Merrida), Mexico (2007)
Petrov, M.; Lymperakis, L.; Neugebauer, J.; Stefaniuk, R.; Dluzewski, P.: Nonlinear Elastic Effects in Group III-Nitrides: From ab-initio to Finite Element Calculation. 17th International Conference on Computer Methods in Mechanics CMM-2007, Spala, Poland (2007)
Petrov, M.; Lymperakis, L.; Neugebauer, J.; Stefaniuk, R.; Dluzewski, P.: Nonlinear Elastic Effects in Group III-Nitrides: From ab-initio to Finite Element Calculation. 17th International Conference on Computer Methods in Mechanics CMM-2007, Spala, Poland (2007)
Neugebauer, J.: Thermodynamic versus Kinetic Stabilization of Short and Long-Range Order in Nitride Based Alloys. Multiscale approach to alloys: advances and challenges, Sigtuna, Sweden (2007)
Neugebauer, J.: Ab initio Determination of Thermodynamic Quantities: Status and Perspectives. The first Sino-German Symposium on Computational Thermodynamics and Kinetics and their Applications to Solidification, Changsha, China (2007)
Hickel, T.; Grabowski, B.; Uijttewaal, M.; Neugebauer, J.: Determination of symmetry-reduced structures by a soft-phonon analysis in magnetic shape memory alloys. Physics Seminar of Loughborough University, Loughborough, UK (2007)
Neugebauer, J.: Computer assisted design of metastable alloys. Leibniz-Institut für Festkörper und Werkstoffforschung International Workshop, Dresden, Germany (2007)
Marquardt, O.; Hickel, T.; Neugebauer, J.: Application of the 8-band k.p-formalism to semiconductor nanostructures. Forschergruppentreffen Uni Bremen, Bremen, Germany (2007)
Neugebauer, J.: Ab initio based growth simulations of group-III-nitrides. Fifth International Conference on Solid State Crystals & Eight Polish Conference on Crystal Growth, Zakopane, Poland (2007)
Hickel, T.; Grabowski, B.; Neugebauer, J.; Marquardt, O.: Department of Computational Materials Design: Present activities and future research. Guided tour in the MPIE of IMPRS-SurMat, Duesseldorf, Germany (2007)
Friák, M.; Sander, B.; Ma, D.; Raabe, D.; Neugebauer, J.: Ab initio prediction of elastic and thermodynamic properties of metals. Seminar in Friedrich-Alexander-Universitaet, Erlangen-Nürnberg, Germany (2007)
Abu-Farsakh, H.; Neugebauer, J.: In-N anti-correlation in InGaAsN alloys: The delicate interplay between adatom thermodynamics and kinetics. Spring meeting of the German Physical Society (DPG), Regensburg, Germany (2007)
Friák, M.; Neugebauer, J.; Sander, B.; Raabe, D.: Theory-guided design of Ti-based binaries for human implants. Spring meeting of the German Physical Society (DPG), Regensburg, Germany (2007)
Grabowski, B.; Hickel, T.; Neugebauer, J.: Ab initio calculation of free energies and thermodynamic properties of fcc metals. Spring meeting of the German Physical Society (DPG), Regensburg, Germany (2007)
This study investigates the mechanical properties of liquid-encapsulated metallic microstructures created using a localized electrodeposition method. By encapsulating liquid within the complex metal microstructures, we explore how the liquid influences compressive and vibrational characteristics, particularly under varying temperatures and strain…
We have studied a nanocrystalline AlCrCuFeNiZn high-entropy alloy synthesized by ball milling followed by hot compaction at 600°C for 15 min at 650 MPa. X-ray diffraction reveals that the mechanically alloyed powder consists of a solid-solution body-centered cubic (bcc) matrix containing 12 vol.% face-centered cubic (fcc) phase. After hot compaction, it consists of 60 vol.% bcc and 40 vol.% fcc. Composition analysis by atom probe tomography shows that the material is not a homogeneous fcc–bcc solid solution
Magnetic properties of magnetocaloric materials is of utmost importance for their functional applications. In this project, we study the magnetic properties of different materials with the final goal to discover new magnetocaloric materials more suited for practical applications.
In this project, we work on a generic solution to design advanced high-entropy alloys (HEAs) with enhanced magnetic properties. By overturning the concept of stabilizing solid solutions in HEAs, we propose to render the massive solid solutions metastable and trigger spinodal decomposition. The motivation for starting from the HEA for this approach…
The aim of the current study is to investigate electrochemical corrosion mechanisms by examining the metal-liquid nanointerfaces. To achieve this, corrosive fluids will be strategically trapped within metal structures using novel additive micro fabrication techniques. Subsequently, the nanointerfaces will be analyzed using cryo-atom probe…
In this project we pursue recent developments in the field of austenitic steels with up to 18% reduced mass density. The alloys are based on the Fe-Mn-Al-C system.
Local lattice distortion is one of the core effects in complex concentrated alloys (CCAs). It has been expected that the strength CCAs can be improved by inducing larger local lattice distortions. In collaboration with experimentalists, we demonstrated that VCoNi has larger local lattice distortions and indeed has much better strength than the…
Laser Powder Bed Fusion (LPBF) is the most commonly used Additive Manufacturing processes. One of its biggest advantages it offers is to exploit its inherent specific process characteristics, namely the decoupling the solidification rate from the parts´volume, for novel materials with superior physical and mechanical properties. One prominet…