Comparison of contributions from different mechanisms of increasing the radiation resistance of CaSiO3 powders modified with CeO2 micro- and nanoparticles

Статья в журнале

The results of a study focused on the separation of contributions into the increasing the radiation resistance of the micro powders modified with micro- and nanoparticles of oxide compounds with the rare earth cations are reported. It is found out that the relaxation of primary defects formed by irradiation occurs in two pathways: relaxation on nanoparticles—crystal lattice structure defects of the CaSiO3 micropowder, and relaxation on the cerium dioxide cations, the rare earth elements with an incomplete f‑shell. The former mechanism provides a larger contribution into the radiation resistance: it decreases the concentration of the irradiation-induced primary radiation defects on nanoparticles, as on the small-sized defects in the micro powder crystal structure. The relationship is fulfilled in a wide range of the fluences of the electrons with the energy of 30 keV (F = (1–7) ∙1016 cm−2). Similar relationships were determined earlier for the ZnO powder modified with Gd2O3 micro- and nanoparticles.

Журнал:

• Russian Physics Journal
• Springer New York Consultants Bureau (Abbotts)
• Индексируется в Scopus, Web of Science

Библиографическая запись: Mikhailov M. M. et al. Comparison of contributions from different mechanisms of increasing the radiation resistance of CaSiO3 powders modified with CeO2 micro-and nanoparticles //Russian Physics Journal. – 2025. – P. 1-9.

Индексируется в:

• Scopus ( https://link.springer.com/article/10.1007/s11182-025-03571-4 )
• Web of science ( https://link.springer.com/article/10.1007/s11182-025-03571-4 )