Mikrostruktur und Anlaßverhalten aufgedampfter bzw. thermisch gespritzter ZrO2-Schichten auf metallischen Substraten

Microstructure and Tempering Behaviour of Evaporated resp. Thermally Sprayed ZrO₂-Layers on Metallic Substrates Because of their application in gas turbines plasmasprayed thermal barrier coatings of partially stabilized zirconia on metallic substrates are an example for the technical use of ceramic-metal-composites. Problems especially concerning the interface adhesion are still partly not understood. In this paper several systems are examined by electron microscopy, which all consist of ceramic zirconia layers evaporated or thermally sprayed on a metallic substrate. Priority is given to structural analysis. An attempt is made to lighten the interface morphology by the method of cross section preparing, because thereby the possibility of aimed preparation is given.