M. A. Borik, T. V. Volkova, E. E. Lomonova, A. V. Kulebyakin, V. A. Myzina, V. A. Panov, P. A. Ryabochkina, N. Yu. Tabachkova, A. N. Chabushkin, S. A. Khrushchalina, “Spectroscopic studies of a tetragonal–monoclinic phase transition in ZrO$_2$–Y$_2$O$_3$–CeO$_2$–Nd$_2$O$_3$”, Fizika Tverdogo Tela, 2015, Volume 57, Issue 10,Pages 1934

Dielectrics

Spectroscopic studies of a tetragonal–monoclinic phase transition in ZrO$_2$–Y$_2$O$_3$–CeO$_2$–Nd$_2$O$_3$

M. A. Borik^a, T. V. Volkova^b, E. E. Lomonova^a, A. V. Kulebyakin^a, V. A. Myzina^a, V. A. Panov^a, P. A. Ryabochkina^b, N. Yu. Tabachkova^c, A. N. Chabushkin^b, S. A. Khrushchalina^c

^a Prokhorov General Physics Institute of the Russian Academy of Sciences, Moscow
^b Ogarev Mordovia State University, Saransk
^c National University of Science and Technology «MISIS», Moscow

Abstract: The character of the distribution of cerium and neodymium dopants in 95.14 wt%ZrO$_2$–3.67 wt%Y$_2$O$_3$–0.89 wt%CeO$_2$–0.30 wt%Nd$_2$O$_3$ crystals has been studied. It has been shown that the crystal has defect regions due to the violation of normal growth of the crystal, which are depleted in the stabilizing Y$_2$O$_3$ oxide and enriched in Nd$_2$O$_3$ and CeO$_2$ dopants. The existence of inclusions of a monoclinic phase in defect regions has been revealed using Raman and optical spectroscopy. A tetragonal–monoclinic phase transition initiated in the crystal by annealing in air has been investigated.

Received: 01.04.2015