1. Institute for Applied Materials (IAM) and MicroTribology Center μTC Karlsruhe Institute of Technology (KIT) Karlsruhe 76131 Germany
2. Institute of Energy and Climate Research (IEK) Forschungszentrum Juelich GmbH Juelich 52425 Germany
3. Chair of Energy Engineering Materials RWTH Aachen University Aachen 52056 Germany
4. Institute for Applied Materials (IAM) Karlsruhe Institute of Technology (KIT) Eggenstein‐Leopoldshafen 76344 Germany