Variation in Properties of ZrO2–Y2O3–CeO2–Al2O3 Powders during Thermal Treatment at 400 to 1300 °C

 
A.Shevchenko
 

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, 2010, #03/04
http://www.materials.kiev.ua/article/1520

Abstract

The paper examines the processes that occur during thermal treatment (sintering) of heterophase nanocrystalline ZrO2–Y2O3–CeO2–Al2O3 powders. It is shown that the disperse system is self-organized in various evolutionary ways. The common behaviors of the properties of ZrO2–Y2O3–CeO2–Al2O3 nanocrystalline powders are determined. The results offer possibilities for selecting initial nanocrystalline powders to develop fine-grained high-performance ceramics.


EVOLUTION, NANOCRYSTALLINE POWDER, SELF-ORGANIZATION, ZIRCONIA, ZRO2–Y2O3–CEО2–AL2O3 SYSTEM