Three multilayeredcoatingsystemswerepreparedtoexamine
the stabilityandstressdistributionusingexperimentalandmodel-
ing techniques.Themicrostructure,microhardnessandcoefficient
of thermalexpansionwerefoundtograduallychangeinthe fivelayer
FG-TBCascomparedwith duplex andthree-layerFG-TBC