Head of Deparment: Dr. Michael Rieth

Our research and development work is part of large-scale research and makes an important contribution to energy research at national and European level. As a partner in the Helmholtz Association's energy program and a member of the EUROfusion large-scale research project, we are actively shaping the future of nuclear fusion.

Focus

We develop structural and functional materials that can withstand extreme conditions. These include high temperatures and heat fluxes, as well as high-energy neutron radiation in combination with mechanical, chemical, or time-critical loads. The material properties are tailored by us for each specific application case. In this way, we open up new applications and areas of use in the field of energy conversion. Typical examples include components of a fusion power plant, such as plasma-facing components (divertor), heat exchangers (blanket), and neutron multipliers (tritium breeding elements).

Competence

Our research is application-oriented and, above all, takes place under the aspects of large-scale research. Therefore, alongside sustainability and cost-effectiveness, the focus is particularly on the use of industrial production, forming, joining, and manufacturing technologies. Starting from an idea, our materials development encompasses theoretical modelling, thermodynamic and thermo-mechanical simulations, production in the laboratory and on an industrial scale, experimental characterization of all relevant properties, microstructural and chemical analyses, the manufacturing of prototypes (semi-finished products and mockups), as well as component testing under the respective operating conditions. Our goal is to provide novel materials, including the materials technology process parameters and key characteristics required for production and component manufacturing.

Network

Despite our focus on materials for very specific applications, the boundary conditions, requirements, and properties to be considered are very complex and diverse. So not all necessary investigations and experiments can be carried out within our department. Therefore, we collaborate closely with a variety of partners from KIT, industry, and other research institutions both domestically and internationally. In particular, the characterization and testing of prototypes requires access to large-scale facilities, such as test reactors for neutron irradiation: : HFIRBR2, or experimental setups for the investigation of plasma-material interactions: HELOKA, ASDEXGLADISJUDITH & JULE-PSI.

Department Group

Graues Hintergrundbild
High-Temperature Materials

Gray Background
Microstructure Analysis

Gaskorrosion

Graues Hintergrundbild
Automated Modeling and Validation

Automated modeling and validation

Group

Atomistische Modellierung
und Validierung

Publicationslist


Technische und rechtliche Rahmenbedingungen für Werbung auf Rastanlagen
Helmer, M.; Neumann, C.; Trampert, K.; Zimmermann, M.
2024. Federal Highway Research Institute. doi:10.60850/fv-v2
Experimental and multiscale simulation analysis of the lubricant penetration in gear skiving
García, E. J.; Sauer, F.; Haber, M.; Mukherjee, A.; Falk, K.; Schwitzke, C.; Bauer, H.-J.; Moseler, M.; Schulze, V.
2025. Production Engineering. doi:10.1007/s11740-025-01374-7
Coaxial-Cavity Design for MW-level 238 GHz Gyrotron
Schmidt, A.; Feuerstein, L.; Illy, S.; Jelonnek, J.; Thumm, M.; Wu, C.
2025, August 27. Workshop on RF Heating Technology of Fusion Plasmas (US-EU-JPN RF Heating Technology Workshop) (2025), Neufahrn, Germany, August 25–27, 2025
Development of Second Harmonic MW-Level Coaxial Gytotron Cavities
Feuerstein, L.; Avramidis, K. A.; Chelis, I.; Illy, S.; Ioannidis, Z. C.; Jelonnek, J.; Jin, J.; Katsara, E.; Peponis, D.; Rzesnicki, T.; Tigelis, I.; Thumm, M.; Wu, C.
2025, August 27. Workshop on RF Heating Technology of Fusion Plasmas (US-EU-JPN RF Heating Technology Workshop) (2025), Neufahrn, Germany, August 25–27, 2025
Concrete structure and shielding in the IFMIF-DONES main building
Luque, M.; Ibarra, A.; Torregrosa, C.; Martín-Fuertes, F.; Podadera, I.; Maestre, J.; Martinez-Echevarria, M. J.; Becerril-Jarque, S.; Piotrowski, T.; Qiu, Y.
2025. Proceedings of the 16th International Particle Accelerator Conference (IPAC’25), Taipei, 1st-6th June 2025, 1630–1632, JACoW Publishing. doi:10.18429/JACoW-IPAC2025-TUPS135
Damping Effect of Eddy Currents in Magnetic Gyotron Collector Sweeping
Ell, B.; Heusinger, C. von; Illy, S.; Thumm, M.; Jelonnek, J.
2025, August 27. Workshop on RF Heating Technology of Fusion Plasmas (US-EU-JPN RF Heating Technology Workshop) (2025), Neufahrn, Germany, August 25–27, 2025
First measurement of the velocity slip coefficient and the tangential momentum accommodation coefficient (TMAC) of pure tritium
Wydra, J.; Größle, R.; Marsteller, A.; Priester, F.; Niemes, S.; Sturm, M.; Skrobocz, V.
2025, June. 31st IEEE Symposium on Fusion Engineering (SOFE 2025), Cambridge, MA, USA, June 23–26, 2025
Impact of the cSTART impedance on beam dynamics
Schwarz, M.; Mueller, A. S.; Schaefer, J.; Glukhov, S.
2025. Proceedings of the 16th International Particle Accelerator Conference (IPAC’25), Taipei, 1st-6th June 2025, 2160–2163, JACoW Publishing. doi:10.18429/JACoW-IPAC2025-WEPM080
Tritium accumulation on and UV/ozone decontamination of beryllium
Batzler, D.; Größle, R.; Haag, P.; Paine, C. E. T.; Röllig, M.; Schäfer, M.; Schaufelberger, M.; Trost, K.
2025, September. 14th International Conference on Tritium Science and Technology (2025), Ottawa, Canada, September 21–26, 2025
Probing new light particles in tritium beta decay with the KATRIN experiment
Lauer, J.
2025, August. 19th International Conference on Topics in Astroparticle and Underground Physics (TAUP 2025), Xichang, China, August 24–30, 2025
From Megawatt-Class Gyrotron Oscillators for Nuclear Fusion Devices to High-Power Microwave Sources for DNP-NMR Applications
Jelonnek, J.; Vöhringer, M. S.; Balaban, K.; Ulusoy, A. C.; Marek, A.; Thumm, M.
2025, September 16. 46th FGMR Annual Discussion Meeting (2025), Bonn, Germany, September 15–18, 2025
Beam impact experiment to qualify the damage limits of Nb3Sn sample coils pre-irradiated to 30 MGy
Gancarcik, D.; Mueller, A. S.; Senatore, C.; Hernalsteens, C.; Wollmann, D.; Domange, D.; Bonura, M.; Babouche, R.
2025. Proceedings of the 16th International Particle Accelerator Conference (IPAC’25), Taipei, 1st-6th of June 2025, 1807–1810, JACoW Publishing. doi:10.18429/JACoW-IPAC2025-WEPB034
A higher-order PDE-based image registration approach
Grimm, V.; Henn, S.; Witsch, K.
2006. Numerical Linear Algebra with Applications, 13 (5), 399–417. doi:10.1002/nla.467
Proper orthogonal decomposition as an analytical approach to parametrisation of asymmetry and heat flux analysis in the Wendelstein 7-X stellarator
W7X Team; Zamorski, B.; Sleczka, M.; Jakubowski, M.; Gao, Y.; Puig Sitjes, A.; Czerski, K.
2025. Plasma Physics and Controlled Fusion, 67 (10), 105027. doi:10.1088/1361-6587/ae1325
Stable Small Plasmas at the Density Limit in the W7-X Stellarator
Pandey, A.; Pedersen, T. S.; Fuchert, G.; Szepesi, T.; Zhang, D.; Stange, T.; Buzas, A.; Romba, T.; Reimold, F.; Perseo, V.; Kwak, S.; Kocsis, G.; Cseh, G.; Gonda, T.; Schlisio, G.; Hirsch, M.; Chaudhary, N.; W7-X team
2025. Physical Review Letters, 135 (17), 175101. doi:10.1103/cfg9-v8hf
Approximation of Semigroups and Related Operator Functions by Resolvent Series
Grimm, V.; Gugat, M.
2010. SIAM Journal on Numerical Analysis, 48 (5), 1826–1845. doi:10.1137/090768084
Optimal boundary control of the wave equation with pointwise control constraints
Gugat, M.; Grimm, V.
2011. Computational Optimization and Applications, 49 (1), 123–147. doi:10.1007/s10589-009-9289-7
Resolvent Krylov subspace approximation to operator functions
Grimm, V.
2012. BIT Numerical Mathematics, 52 (3), 639–659. doi:10.1007/s10543-011-0367-8
Uniform Approximation of -Functions in Exponential Integrators by a Rational Krylov Subspace Method with Simple Poles
Göckler, T.; Grimm, V.
2014. SIAM Journal on Matrix Analysis and Applications, 35 (4), 1467–1489. doi:10.1137/140964655


Contact person

Dr. Dipl.-Ing. Michael Rieth
Head of Department Metallic Materials

+49 721 608-22909
michael.rieth∂kit.edu