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  4. № 01/02 2013
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Microstructure and Properties of Detonation-Sprayed Thermal Barrier Coatings Based on ZrO2

† V.Oliker,
 
S.A.Abdurashitova,
 
I.Martseniuk,
 
E.Grechishkin,
 
A.A.Bondarenko
 

I. M. Frantsevich Institute for Problems of Materials Science of the NAS of Ukraine, Omeliana Pritsaka str.,3, Kyiv, 03142, Ukraine
Powder Metallurgy - Kiev: Frantsevich Institute for Problems of Materials Science NASU, 2013, #01/02
http://www.materials.kiev.ua/article/915

Abstract

The formation of detonation-sprayed thermal barrier coatings based on ZrO2 is studied. The influence of spraying modes on the structure and mechanical properties of the coatings is deter-mined. It is established that the microstructure of the coatings and thus their mechanical properties can be improved by controlling the weight of ZrO2–7%Y2O3 powder sprayed per shot. A quan-titative performance evaluation of the mechanical properties of thermal barrier coatings by indentation method has shown good results.


DETONATION SPRAYING, FRACTURE TOUGHNESS, MICROSTRUCTURE, THERMAL BARRIER COATINGS

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