1. German Aerospace Centre (DLR), Institute of Engineering Thermodynamics, Pfaffenwaldring 38-40, 70569 Stuttgart, Germany
2. University of Bayreuth, Department of Ceramic Materials Engineering (CME), Prof.-Rüdiger-Bormann-Straße 1, 95447 Bayreuth, Germany
3. Sunfire GmbH, Gasanstaltstraße 2, 01237 Dresden, Germany