STRUCTURE AND PHASE COMPOSITION OF ARC-PVD ZrTaN/ZrTiCuN NANOLAMINATE COATINGS

In the present research the structure and phase composition of nanolaminate ARC-PVD ZrTaN/ZrTiCuN coatings have been investigated. Raman spectroscopy, scanning electron microscopy (SEM) with microanalysis (EDX), X-ray diffraction analysis were used to study the surface morphology, chemical composition and its distribution. The lattice parameters of the phases detected in the coatings by XRD differ from the literature values and the reason for such deviations can be both the presence of macrostrains in the coatings and the replacement of zirconium by other elements (Ta, Ti, Cu) in the sub-lattice cells of the above-mentioned phases.