Research of Structural, Strength and Thermal Properties of ZrO2—CeO2 Ceramics Doped with Yttrium
Giniyatova S.G. Sailaukhanov N.A. Nesterov E. Zdorovets M.V. Kozlovskiy A.L. Shlimas D.I.
February 2022MDPI
Crystals
2022#12Issue 2
In this work, using a mechanochemical solid-phase synthesis method, ZrO2—CeO2 ceramics doped with yttrium were obtained, which have great prospects for use as a basis for dispersed nuclear fuel materials or inert nuclear fuel matrices. The purpose of this work was to study the formation of the ZrO2—CeO2 phase composition, depending on the concentration of yttrium dopant, as well as to study their structural and strength properties. The relevance of this study is in obtaining new data on the properties of composite ceramics based on oxides having a cermet structure, as well as the effect of doping with yttrium on increasing the resistance of ceramics to deformation and thermal properties. During the studies, the dynamics of the phase transformations depending on the concentration of the dopant, as well as changes in the structural characteristics and dislocation density, were established. It was found that at a dopant concentration of 0.25 mol, the main phase in the structure was Ce3ZrO8–triclinic P1 (1), the formation of which led to an increase in the mechanical and strength properties of the ceramics as well as a 1.5-fold increase in the thermal conductivity coefficient.
Doping , Inert matrices , Oxide ceramics , Phase transformations , Zirconium dioxide
Text of the article Перейти на текст статьи
Engineering Profile Laboratory, L.N. Gumilyov Eurasian National University, Nur-Sultan, 010008, Kazakhstan
Educational and Scientific Center “Research Nuclear Reactor” of the School of Nuclear Technology Engineering, Tomsk Polytechnic University, Tomsk, 634050, Russian Federation
Laboratory of Solid State Physics, The Institute of Nuclear Physics, Almaty, 050032, Kazakhstan
Department of Intelligent Information Technologies, Ural Federal University, Yekaterinburg, 620075, Russian Federation
Institute of Geology and Oil and Gas Business, Satbayev University, Almaty, 050032, Kazakhstan
Engineering Profile Laboratory
Educational and Scientific Center “Research Nuclear Reactor” of the School of Nuclear Technology Engineering
Laboratory of Solid State Physics
Department of Intelligent Information Technologies
Institute of Geology and Oil and Gas Business
10 лет помогаем публиковать статьи Международный издатель
Книга Публикация научной статьи Волощук 2026 Book Publication of a scientific article 2026