Radiation Resistance and Hydrolytic Stability of Y0.95Gd0.05PO4-Based Ceramics with the Xenotime Structure

Study of the Influence of the Irradiation Flux Density on the Formation of a Defect Structure in AlN in the Case of the Effect of Overlapping of the Heavy Ion Motion Trajectories in the Near-Surface Layer

“…Unlike metal alloys and steels, in which the processes of martensitic transformations can be initiated during high-dose irradiation, which result into a sharp decrease in the strength properties of materials, such processes are not observed in ceramics in view of their structural features. However, in several cases, so-called latent tracks (structural disordering areas) were found in ceramic materials, the formation of which leads to the destabilization of the damaged layer and its disordering with subsequent amorphization [8][9][10]. At the same time, the formation of latent tracks in ceramic materials, as shown in several papers [9][10][11][12], has a pronounced dependence on the energy and type of incident ions, the variation of which leads to different rates of formation and accumulation of radiation damage in the form of point and vacancy defects, as well as changes in electronic density due to the differences in ionization losses.…”

“…However, in several cases, so-called latent tracks (structural disordering areas) were found in ceramic materials, the formation of which leads to the destabilization of the damaged layer and its disordering with subsequent amorphization [8][9][10]. At the same time, the formation of latent tracks in ceramic materials, as shown in several papers [9][10][11][12], has a pronounced dependence on the energy and type of incident ions, the variation of which leads to different rates of formation and accumulation of radiation damage in the form of point and vacancy defects, as well as changes in electronic density due to the differences in ionization losses. However, as is known, the radiation damage accumulation rate can be influenced not only by the energy of the incident ions and their type, but also by their flux density, i.e., the number of ions interacting with materials at a time [13,14].…”