NANOSYSTEMS: PHYSICS, CHEMISTRY, MATHEMATICS, 2012, 3 (4), P. 75–81
FEATURES OF PHASE FORMATION IN THE ZrO2—TiO2 SYSTEM UNDER HYDROTHERMAL CONDITIONS
Anastasiya Vasilevskaya – Saint Petersburg State Institute of Technology (Technical University), Saint Petersburg, Russia, postgraduate, a.k.vasilevskaya@gmail.com
Oksana Almjasheva – Saint Petersburg State Institute of Technology (Technical University), Saint Petersburg, Russia, Senior Researcher, Ph.D. in Chemistry, almjasheva@mail.ru
Influence of chemical prehistory of the precursors on chemical reactions in the ZrO2—TiO2 system under hydrothermal conditions was investigated. The possibility of formation phases with fluorite-like structure (Zr,Ti)2O4 at temperature 240°C is shown, it being process of nucleation on stage of coprecipitation of hydroxides is crucial.
Keywords: nanoparticles, nanocomposites, structural transformations, ZrO2, TiO2, hydrothermal synthesis.
UDC 544.344.015.4-17, 661.883.1, 661.882.23-14, 661.882.27
PACS 61.46.-w