Karaoglanli A.C.Turk A.Ozdemir I.2024-07-222024-07-22201602670844http://akademikarsiv.cbu.edu.tr:4000/handle/123456789/15695In this study, thermal barrier coatings were deposited on nickel-based super-alloy with CoNiCrAlY bond and yttria partially stabilised zirconia top coats, using cold gas dynamic spraying and atmospheric plasma spraying techniques, respectively. High temperature oxidation behaviour and sintering effect on the mechanical properties of the coatings were studied. The main objective of this work is to explain the alteration in coating structure depending on temperature, and the mechanisms that lead to alterations in mechanical properties such as Young’s modulus and hardness. Structural examination after oxidation revealed a decrease in porosity content and crack healing on ceramic top coatings resulting from sintering effect. © 2016 Institute of Materials, Minerals and Mining.EnglishCoatingsDynamicsGas dynamicsMechanical propertiesNickel coatingsOxidationPlasma jetsPlasma sprayingSinteringSprayed coatingsThermal sprayingThermooxidationZirconiaAtmospheric plasma sprayingCoating structuresCold gas dynamic sprayingHigh temperatureNickel- based superalloysPorosity contentsSintering effectStructural examinationThermal barrier coatingsArticle10.1080/02670844.2016.1182959