MIXED FILM COATINGS ANALYZED BY MICRO X-RAY FLUORESCENCE METHOD

The purpose of this reported work is the analysis of nickel-based thermal barrier coatings prepared by thermionic vacuum arc method using the micro X-ray fluorescence (micro-XRF) technique. Atomic concentration calibration and comparison between theoretical and real distribution of the alloys composition in the obtained layers with thermal barrier properties are presented. 3D mapping of nickel, rhenium, and chromium surface relative concentrations was performed on a 240 mm x 90 mm substrate plate.