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Ulyanova T.M.,Institute of General and Inorganic Chemistry of NAS of Belarus | Vitiaz P.A.,Presidium of NAS of Belarus | Krutko N.P.,Institute of General and Inorganic Chemistry of NAS of Belarus | Titova L.V.,Institute of General and Inorganic Chemistry of NAS of Belarus | And 2 more authors.
Proceedings of the World Powder Metallurgy Congress and Exhibition, World PM 2010 | Year: 2010

A synthesis procedure for the fabrication of multi-component nano-structured refractory oxide powders and fibers was developed. In ZrO2(Y2 O3) - Al2O3 system, the nano-structured triple solid solutions were formed over the temperature range 600-1100°C. It had been shown that the solid solutions destructed higher 1100°C. This destruction and crystalline transformations caused size particle alumina to decrease. The size of refractory oxide crystallites was calculated and their dependences versus temperature were established. The physical-chemical properties of nano-structured powders were determined. This investigation permits us to regulate the production technology of fibrous and powder nano-structured refractory oxides purposefully. Nano-structured powders can be used as fillers for composite materials and for preparing ceramics. Source

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