Study of Phase Formation Processes in Li2ZrO3 Ceramics Obtained by Mechanochemical Synthesis
Zdorovets M.V. Kozlovskiy A.L. Abyshev B. Yensepbayev T.A. Uzbekgaliyev R.U. Shlimas D.I.
January 2022MDPI
Crystals
2022#12Issue 1
The article is dedicated to the study of the phase formation processes in Li2ZrO3 ceramics obtained by the method of solid phase synthesis. Interest in these types of ceramics is due to their great potential for use as blanket materials in thermonuclear reactors, as well as being one of the candidates for tritium breeder materials. Analysis of the morphological features of the synthesized ceramics depending on the annealing temperature showed that the average grain size is 90–110 nm; meanwhile the degree of homogeneity is more than 90% according to electronic image data processing results. The temperature dependences of changes in the structural and conducting characteristics, as well as the phase transformation dynamics, have been established. It has been determined that a change in the phase composition by displacing the impurity LiO and ZrO2 phases results in the compaction of ceramics, as well as a decrease in their porosity. These structural changes are due to the displacement of LiO and ZrO2 impurity phases from the ceramic structure and their transformation into the Li2ZrO3 phase. During research, the following phase transformations that directly depend on the annealing temperature were established: LiO/ZrO2/Li2ZrO3 → LiO/Li2ZrO3 → Li2ZrO3 . During analysis of the obtained current-voltage characteristics, depending on the annealing temperature, it was discovered that the formation of the Li2ZrO3 ordered phase in the structure results in a rise in resistance by three orders of magnitude, which indicates the dielectric nature of the ceramics.
Blankets , Li2ZrO3 , Lithium-containing ceramics , Mechanochemi-cal synthesis , Phase transformations
Text of the article Перейти на текст статьи
Laboratory of Solid State Physics, The Institute of Nuclear Physics, Almaty, 050032, Kazakhstan
Engineering Profile Laboratory, L.N. Gumilyov, Eurasian National University, Nur-Sultan, 010008, 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
Laboratory of Solid State Physics
Engineering Profile Laboratory
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