Аннотации:
The study investigates alterations in the mechanical and thermophysical properties of
ceramics composed of xLi2ZrO3–(1−x)Li4SiO4 as radiation damage accumulates, mainly linked to
helium agglomeration in the surface layer. This research is motivated by the potential to develop
lithium-containing ceramics characterized by exceptional strength properties and a resistance to
the accumulation of radiation damage and ensuing deformation distortions in the near-surface
layer. The study of the radiation damage accumulation processes in the near-surface layer was
conducted through intense irradiation of ceramics using He2+ ions at a temperature of 700 ◦C,
simulating conditions closely resembling operation conditions. Following this, a correlation between
the accumulation of structural modifications (value of atomic displacements) and variations in
strength and thermophysical characteristics was established. During the research, it was observed
that two-component ceramics exhibit significantly greater resistance to external influences and
damage accumulation related to radiation exposure compared to their single-component counterparts.
Furthermore, the composition that provides the highest resistance to softening in two-component
ceramics is an equal ratio of the components of 0.5Li2ZrO3–0.5Li4SiO4 ceramics.
