Resonant-based identification of the elastic properties of ceramic coatings

The elastic properties of the individual layers of layered materials can be derived from the resonant frequencies of a set of test specimens comprising samples with different layer configurations [1]. Based on this, a mixed numerical-experimental framework for the identification of the elastic properties of layered materials has been formulated and a number of different identification routines were developed. In this work, the elastic properties of an yttria-stabilised zirconia top coat of an air plasma sprayed thermal barrier coating are identified with the different mixed numerical-experimental routines that were developed. The obtained results are critically evaluated, and some recommendations on the use of the considered routines for the identification of coating properties are presented.