Proton Irradiation Study of GFR Candidate Ceramics

Journal Article · Fri May 01 04:00:00 EDT 2009 · Journal of Nuclear Materials

DOI:https://doi.org/10.1016/j.jnucmat.2009.02.021· OSTI ID:960249

Gan, Jian; Yang, Yong; Dickson, Clayton; Allen, Todd

This work investigated the microstructural response of ZrC, ZrN, TiN, and SiC irradiated with 2.6 MeV protons at 800ºC to a single dose in the range of 1.5 to 3.0 displacement per atom (dpa), depending on the material. The change of lattice constant evaluated using HOLZ patterns is not observed and is small when measured using XRD for the irradiated samples up to 1.5 dpa for 6H-SiC, and up to 3.0 dpa for ZrC and ZrN. In comparison to Kr ion irradiation at 800ºC to 10 dpa from the previous studies, the proton-irradiated ceramics at 3.0 dpa show less irradiation damage to the lattice structure. The irradiated ZrC exhibits faulted loops which are not observed in the Kr ion irradiated sample. The irradiated ZrN shows the least microstructural change from proton irradiation. The microstructure of 6H-SiC irradiated to 3.0 dpa consists of a black dot defect type at high density.

• Research Organization: Idaho National Laboratory (INL)
• Sponsoring Organization: DOE - NE
• DOE Contract Number: AC07-99ID13727
• OSTI ID: 960249
• Report Number(s): INL/JOU-08-13888
• Journal Information: Journal of Nuclear Materials, Journal Name: Journal of Nuclear Materials Journal Issue: 2 Vol. 389; ISSN 0022-3115; ISSN JNUMAM
• Country of Publication: United States
• Language: English

Related Subjects

11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS
ATOMS
CERAMICS
DEFECTS
IRRADIATION
MICROSTRUCTURE
PROTONS
X-RAY DIFFRACTION
density measurement results
gas cooled fast reactor (GFR)
proton irradiation
transmission electron microscopy (TEM) analysis