Pierce, D.T.; Benzing, J. T.; Jiménez, J. A.; Hickel, T.; Bleskov, I.; Keum, J. K.; Raabe, D.; Wittig, J., J. E.: The influence of temperature on the strain-hardening behavior of Fe–22/25/28Mn–3Al–3Si TRIP/TWIP steels. Materialia 22, 101425 (2022)
Mendive-Tapia, E.; Neugebauer, J.; Hickel, T.: Ab initio calculation of the magnetic Gibbs free energy of materials using magnetically constrained supercells. Physical Review B 105 (16), 064425 (2022)
Sreekala, L.; Dey, P.; Hickel, T.; Neugebauer, J.: Unveiling nonmonotonic chemical trends in the solubility of H in complex Fe–Cr–Mn carbides by means of ab initio based approaches. Physical Review Materials 6 (1), 014403 (2022)
Schneider, A.; Fu, C.-C.; Waseda, O.; Barreteau, C.; Hickel, T.: Ab initio based models for temperature-dependent magnetochemical interplay in bcc Fe–Mn alloys. Physical Review B 103 (2), 024421 (2021)
Lochner, F.; Eremin, I. M.; Hickel, T.; Neugebauer, J.: Ab initio study of the structural response to magnetic disorder and van der Waals interactions in FeSe. Physical Review B 103 (5), 054506 (2021)
Esakkiraja, N.; Gupta, A.; Jayaram, V.; Hickel, T.; Divinski, S. V.; Paul, A.: Diffusion, defects and understanding the growth of a multicomponent interdiffusion zone between Pt-modified B2 NiAl bond coat and single crystal superalloy. Acta Materialia 195, pp. 35 - 49 (2020)
Here the focus lies on investigating the temperature dependent deformation of material interfaces down to the individual microstructural length-scales, such as grain/phase boundaries or hetero-interfaces, to understand brittle-ductile transitions in deformation and the role of chemistry or crystallography on it.
The group aims at unraveling the inner workings of ion batteries, with a focus on probing the microstructural and interfacial character of electrodes and electrolytes that control ionic transport and insertion into the electrode.
The full potential of energy materials can only be exploited if the interplay between mechanics and chemistry at the interfaces is well known. This leads to more sustainable and efficient energy solutions.
In order to develop more efficient catalysts for energy conversion, the relationship between the surface composition of MXene-based electrode materials and its behavior has to be understood in operando. Our group will demonstrate how APT combined with scanning photoemission electron microscopy can advance the understanding of complex relationships…