TY - JOUR
T1 - Atom Probe Tomography of Segregation at Grain Boundaries and Gas Bubbles in Neutron Irradiated U-10 wt% Mo Fuel
AU - Arivu, Maalavan
AU - Hoffman, Andrew
AU - Bachhav, Mukesh
AU - Aitkaliyeva, Assel
AU - Wu, Yaqiao
AU - Miller, Brandon
AU - Keiser, Dennis
AU - Gan, Jian
AU - Wen, Haiming
N1 - Publisher Copyright:
© 2024
PY - 2024/6/15
Y1 - 2024/6/15
N2 - During neutron irradiation to fission densities > 5.2 × 1021 fiss/cm3, Xe agglomerates forming gas bubbles of varying size within the U-Mo fuel matrix. Herein, segregation of fission products to Xe bubbles and grain boundaries (GB) were studied using atom probe tomography (APT). Segregation behavior was found to vary among GBs, small bubbles (<10 nm), and larger bubbles (>10 nm). Solid fission products were enriched at GBs and larger bubbles, but not at small bubbles. A denuded zone was identified adjacent to a > 10 nm Xe gas bubble and a GB.
AB - During neutron irradiation to fission densities > 5.2 × 1021 fiss/cm3, Xe agglomerates forming gas bubbles of varying size within the U-Mo fuel matrix. Herein, segregation of fission products to Xe bubbles and grain boundaries (GB) were studied using atom probe tomography (APT). Segregation behavior was found to vary among GBs, small bubbles (<10 nm), and larger bubbles (>10 nm). Solid fission products were enriched at GBs and larger bubbles, but not at small bubbles. A denuded zone was identified adjacent to a > 10 nm Xe gas bubble and a GB.
UR - https://www.scopus.com/pages/publications/85189431847
UR - https://scholarworks.boisestate.edu/mse_facpubs/602
U2 - 10.1016/j.matlet.2024.136414
DO - 10.1016/j.matlet.2024.136414
M3 - Article
SN - 0167-577X
VL - 365
JO - Materials Letters
JF - Materials Letters
M1 - 136414
ER -