• Nerubatskyi, V. P.
• Chyshkala, V. O.
• Vovk, R. V.
• Morozova, O. M.
• Gevorkyan, E. S.
• Latosińska, Jolanta Natalia
• Lytovchenko, S. V.

Abstract

The method of electron beam heating of a mixture of yttrium and zirconium oxides for the synthesisof complex oxides has been implemented. It is established that the applied technology of meltingthe mixture of oxides leads to the formation of fluorite phases. It is determined that homogenizationof the initial mixture of oxides should be carried out in a high-energy mill, which will reduce thetemperature and duration of the synthesis of complex oxide compounds, including the desired structureof pyrochlorine. It is proposed to improve the technique of intensive thermal influence on the processof pyrochlorine synthesis by using an equiatomic alloy Y–Ti (65 wt.% Y–35 wt% Ti), which has beensmelted using the arc melting method in an argon atmosphere. It was found that hydrogen saturationreduces the efficiency of pyrochlorine synthesis and increases the grain size, which may be associatedwith grain growth at the stage of hydrogen saturation.

Topics

• impedance spectroscopy
• dispersion
• compound
• grain
• grain size
• phase
• zirconium
• steel
• Hydrogen
• Yttrium
• ceramic
• grain growth