1. AC2T research GmbH, Viktor-Kaplan-Straße 2, 2700 Wiener Neustadt, Austria
2. Institute of Advanced Ceramics, Hamburg University of Technology, Denickestraße 15/K, 21073 Hamburg, Germany
3. Institute of Applied
Physics, Vienna University of Technology, Wiedner Hauptstraße 8-10/134, 1040 Vienna, Austria