1. Karlsruhe Institute of Technology (KIT Campus South), Institute for Mechanical Process Engineering, Strasse am Forum 8, 76128 Karlsruhe (Germany), Fax: (+49) 721/608‐4 2403
2. Karlsruhe Institute of Technology (KIT Campus North), Institute for Applied Materials, Ceramic Materials and Technologies, Hermann‐von‐Helmholtz‐Platz 1, 76344 Eggenstein‐Leopoldshafen (Germany)