Sol-gel preparation and characterization of corundum based ceramic oxidation protection coatings [Elektronische Ressource] / Martin Dressler

“Sol-Gel Preparation and Characterization of Corundum Based Ceramic Oxidation Protection Coatings” Von der Fakultät für Maschinenbau, Verfahrens- und Energietechnik der Technischen Universität Bergakademie Freiberg genehmigte DISSERTATION zur Erlangung des akademischen Grades Doktor der Ingenieurwissenschaften Dr.-Ing. vorgelegt 1von: Dipl.-Ing. Martin Dressler geboren am: 30. August 1977 in: Freiberg Gutachter: Prof. Dr.-Ing. habil. Christos G. Aneziris, TU-Bergakademie Freiberg Prof. Dr.-Ing. habil. Horst Biermann, TU-Bergakademie Freiberg Dr. sc. nat. Marianne Nofz, Bundesanstalt für Materialforschung und -prüfung 1 martin.dressler@gmx.net ii dedicated to M. Nofz I believe what true scientific work constitutes is the unselfish thirst for knowledge; which is paradox because eventually it is this approach which brings about the most sensational practical consequences. Irène Joliot-Curie, winner of the Nobel prize for chemistry 1938 iii iv ABSTRACT he Ni-base superalloy, IN-718, has been coated with alumina sols. Coated surfaces, carrying T alumina layers having thicknesses between 0.6 µm and 3.