1. Forschungszentrum Jülich GmbH, Institute for Energy and Climate Research (IEK), Microstructure and Properties of Materials (IEK-2), Jülich, Germany
2. Faculty of Materials Science and Engineering, Kunming University of Science and Technology, Kunming, China
3. Forschungszentrum Jülich GmbH, Institute for Energy and Climate Research (IEK), Materials Synthesis and Processing (IEK-1), Jülich, Germany