Xerogels and powders in the ZrO2−Y2O3−Yb2O3 system are synthesized by coprecipitation of hydroxides in a laboratory setup and in a micro-vortex jet apparatus with counterswirling flows. The effects of the initial zirconium oxynitrate concentration and synthesis conditions on the physicochemical properties of the obtained materials are revealed. Ceramics based on t-ZrO2 are obtained, exhibiting high microhardness, elastic modulus, and coefficients of linear thermal expansion (CLTE), which makes them promising for use as thermal insulation materials.
Fedorenko et al. (Mon,) studied this question.