Gradient protective coatings of different application produced by EB-PVD

Abstract The report deals with the results of experimental studies of structure and some properties of gradient coatings deposited using an electron-beam physical vapour deposition (EBPVD) method from one source of metals and oxide mixtures. Most attention is focused on heat-resistant and wear-resistant coatings of Al-metal-Al 2 O 3 and Al-metal-Al 2 O 3 -MgO grade as well as to thermal-barrier coatings of Al-Al 2 O 3 -ZrO 2 grade. Potential fields for the application of heat-resistant and wear-resistant coatings are analysed. A brief description of the laboratory, pilot and commercial EBPVD equipment for the deposition of all the above-mentioned grades of coatings is presented.