aInstitute of Physics and Technology, Ural Federal University, Ekaterinburg, Russian Federation bInstitute of Electrophysics, Ural Branch of the Russian Academy of Sciences, Ekaterinburg, Russian Federstion cNANOTECH Centre, Ural Federal University, Ekaterinburg, Russian Federation dM.N. Mikheev Institute of Metal Physics, Ural Branch of the Russian Academy of Sciences, Ekaterinburg, Russian Federation
Аннотация:
Yttrium oxide ceramics doped with CeO2 (5 mol%) were prepared from nanopowders produced by the laser ablation method. The optical measurements have demonstrated that the transparency of as-sintered ceramic was markedly increased after annealing (T = 1400 °C) under air. XPS data revealed the presence of mixed Ce3+ and Ce4+ states, while oxygen defect peak decreased after annealing owing to the defect elimination during oxygen diffusion into the highly defective ceramic.