Insight into the effects of gamma radiation on MLCCs: from in situ capacitance experiments to physical mechanisms.

ABSTRACT: Multilayer ceramic capacitors, as critical components in aerospace applications, demand thorough reliability assessment under gamma ray irradiation in extreme environments. While previous studies predominantly employed ex situ high-dose-rate radiation methods, significant knowledge gaps remain regarding dose-rate dependencies, particularly at lower levels. This investigation pioneers comprehensive in situ capacitance experimentation with controlled dose-rate variations coupled with multiscale structural characterization spanning from average to state-of-the-art atomic-scale probing. Our findings reveal three distinct radiation response mechanisms in BaTiO₃-based MLCCs: (i) classical total ionizing dose effects, (ii) enhanced low dose rate sensitivity effect, and (iii) an intrigu

SUBMITTER: Yang P 

PROVIDER: S-EPMC12552484 | biostudies-literature | 2025 Oct

REPOSITORIES: biostudies-literature