These images show failure propagation in Al2O3-ZrO2 coatings prepared by atmospheric plasma spraying (APS) and high-velocity oxy-fuel (HVOF). Fused and Crushed (F&C) and Agglomerated and Sintered (A&S) powders were used as feedstocks. Observation was carried out using Carl Zeiss EVO MA 15 SEM microscope and 3-point bending stage.
The paper:
J. Kiilakoski, R. Musalek, F. Lukac, H. Koivuluoto, P. Vuoristo
Evaluating the toughness of APS and HVOF-sprayed Al2O3-ZrO2-coatings by in-situ- and macroscopic bending
Journal of European Ceramic Society
https://doi.org/10.1016/j.jeurceramsoc.2017.11.056