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Effect of the heat treatment temperature of initial powders on “aging” of composites in the ZrO2—Y2O3—CeO2 system

I.Marek,
 
O.Ruban,
 
V.Redko,
 
N.Danilenko,
 
S.A.Korniy,
 
O.Dudnik
 

I. M. Frantsevich Institute for Problems of Materials Science of the NAS of Ukraine, Omeliana Pritsaka str.,3, Kyiv, 03142, Ukraine
Adhesion of Melts and Brazing of Materials - Kiev: Frantsevich Institute for Problems of Materials Science NASU, 2018, #51
http://www.materials.kiev.ua/article/2593

Abstract

The effect of the thermal treatment temperature, of the initial nanocrystalline powder (% (mol)) of 92,5ZrO2—2,5Y2O3—5CeO2 on the accelerated “aging” of the sintered composites of the ZrO2—Y2O3—CeO2 system was investigated. It was determined that the phase composition of composites was influenced by the degree of completeness of the F-ZrO2 → T-ZrO2 phase transformation in the powders: M-ZrO2 increases in samples that are on the temperature boundaries of the phase transformation of F-ZrO2 → T-ZrO2.


ACCELERATED ”AGING“, ZRO2—Y2O3—CEO2 SYSTEM, HYDROTHERMAL SYNTHESIS, M-ZRO2, T-ZRO2, TRANSFORMATION STRENGTHENING

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