Kr ion irradiation study of polymer-derived SiFeOC-C-SiC nanocomposite Academic Article uri icon

abstract

  • AbstractThis study focuses on the pyrolysis and ion irradiation behaviors of polymerderived SiFeOCCSiC ceramic. The pyrolyzed material is composed of SiO2 and SiOC (amorphous), carbon (amorphous and turbostratic), and Fe3Si and SiC (nanocrystalline). Irradiation was carried out at both room temperature and 600C using 400keV Kr ions with fluences of 41015 and 11016ionscm2, respectively. The Fe3Si and SiC nanocrystals are stable against irradiation up to 3displacement per atom (dpa) at room temperature and up to 12dpa at 600C. The SiOC tetrahedrals show phase separation and minor carbothermal reduction. The high irradiation resistance and the dense, defectfree amorphous microstructure of SiFeOCCSiC after prolonged irradiation demonstrate its great potential for advanced nuclear reactor applications.

published proceedings

  • JOURNAL OF THE AMERICAN CERAMIC SOCIETY

author list (cited authors)

  • Lu, K., Singh, S., & Shao, L.

citation count

  • 1

publication date

  • September 2022

publisher