Busch, F.; Balogun, O.; Snyder, G. J.; Scheu, C.; Isotta, E.: Unravelling grain boundary influences on electronic and lattice thermal conductivity in Mn-doped SnTe thermoelectrics. 21st European Conference on Thermoelectrics (ECT) 2025, Nancy, Frankreich (2025)
Mattlat, D. A.; Jung, C.; Ying, P.; Li, J.; He, S.; Bahrami, A.; Zhang, S.; Scheu, C.: New method of FIB TEM sample preparation for in situ heating and biasing MEMS chip used for investigation on Zn4Sb3 thermoelectric material. Microscopy Conference (MC) 2025, Karlsruhe, Germany (2025)
Mattlat, D. A.; Bueno Villoro, R.; Jung, C.; Naderloo, R. H.; He, R.; Nielsch, K.; Zavanelli, D.; Snyder, G. J.; Zhang, S.; Scheu, C.: Electron microscopy characterization of grain boundaries in Nb1-xTixFeSb based half-Heusler thermoelectric materials. Electron Microscopy Congress (EMC) 2024, Copenhagen, Denmark (2024)
Mattlat, D. A.; Bueno Villoro, R.; Jung, C.; Scheu, C.; Zhang, S.; Naderloo, R. H.; Nielsch, K.; He, .; Zavanelli, D.; Snyder, G. J.: Effective doping of InSbat the grain boundaries in Nb1-xTixFeSb based Half-Heusler thermoelectricsfor high electrical conductivity and Seebeckcoefficient. 40th International & 20th European Conference on Thermoelectrics, Krakow, Poland (accepted)
Bueno Villoro, R.; Zavanelli, D.; Jung, C.; Mattlat, D. A.; Naderloo, R. H.; Pérez, N. A.; Nielsch, K.; Snyder, G. J.; Scheu, C.; He, R.et al.; Zhang, S.: Grain Boundary Phases in NbFeSb Half-Heusler Alloys: A New Avenue to Tune Transport Properties of Thermoelectric Materials. Microscopy of semiconducting materials conference, Cambridge, UK (2023)
Bueno Villoro, R.; Luo, T.; Bishara, H.; Abdellaoui, L.; Gault, B.; Wood, M.; Snyder, G. J.; Scheu, C.; Zhang, S.: Effect of grain boundaries on electrical conductivity in Ti(Co,Fe)Sb half Heusler thermoelectrics. 719. WE-Heraeus-Seminar, Understanding Transport Processes on the Nanoscale for Energy Harvesting Devices, online (2021)
Aymerich Armengol, R.; Lim, J.; Ledendecker, M.; Scheu, C.: Structure-property relationship studies of Pt/TiO2 nanomaterials for electrochemical applications. International Workshop on Advanced and In-situ Microscopies of Functional Nanomaterials and Devices, IAMNano 2019 , Düsseldorf, Germany (2019)
Changizi, R.; Lim, J.; Zhang, S.; Schwarz, T.; Scheu, C.: Characterization of KCa2Nb3O10. IAMNano 2019, International Workshop on Advanced and In-situ Microscopies of Functional Nanomaterials and Devices, Düsseldorf, Germany (2019)
Gänsler, T.; Hengge, K. A.; Scheu, C.: 3D Reconstruction of Identical Location Electron Micrographs – Methodology and Pitfalls. IAMNano 2019, International Workshop on Advanced and In-situ Microscopies of Functional Nanomaterials and Devices, Düsseldorf, Germany (2019)
Sahu, R.; Singh Negi, D.; Scheu, C.: Local strain field in distorted 1T (1Td) MoS2 phases by GPA. International Workshop on Advanced and In-situ Microscopies of Functional Nanomaterials and Devices, IAMNano 2019, Düsseldorf, Germany (2019)
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…
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 the use of a combinatorial experimental approach to design advanced multicomponent multi-functional alloys with rapid alloy prototyping. We use rapid alloy prototyping to investigate five multicomponent Invar alloys with 5 at.% addition of Al, Cr, Cu, Mn and Si to a super Invar alloy (Fe63Ni32Co5; at.%), respectively…
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…