USE OF CERAMIC COATINGS AS
THERMAL BARRIERS IN HEAT CYCLING 
N. M. Chigrinova

UDC 691.9.048.4

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.

Scientific-Research Institute of Powder Metallurgy with 
Pilot Production, Minsk, Belarus. 
Translated from Inzhenerno-Fizicheskii Zhurnal, Vol. 74, No. 6, pp. 167-173, 
November-December, 2001. Original article submitted December 26, 2000.

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