Use of Ceramic Coatings as Thermal Barriers in Heat Cycling

Within the context of a phenomenological model of the process of anode microarc oxidation (AMO) some features of the formation of ceramic coatings have been investigated. Experimental results are reported which confirm the good coincidence of the calculated and experimental data on the creation, by the AMO method, of effective layers with the required properties and a prescribed microstructure. With the example of the pistons of highly augmented internal combustion engines, the efficiency is shown of using the developed composition of an electrolyte and the proposed range of electrophysical parameters of the AMO technology for creation of thermal barriers on the critical surfaces of complex configuration of thermostressed units functioning under conditions of heat cycling.