TY - JOUR
T1 - Uranium Migration in Spark Plasma Sintered W/UO2 CERMETS
AU - Tucker, Dennis S.
AU - Wu, Yaqiao
AU - Burns, Jatuporn
N1 - Tucker, Dennis S.; Wu, Yaqiao; and Burns, Jatuporn. (2018). "Uranium Migration in Spark Plasma Sintered W/UO2 Cermets". Journal of Nuclear Materials, 500, 141-144. https://doi.org/10.1016/j.jnucmat.2017.12.029
PY - 2018/3/1
Y1 - 2018/3/1
N2 - W/UO 2 CERMET samples were sintered in a Spark Plasma Sintering (SPS) furnace at various temperature under vacuum and pressure. High Resolution Transmission Electron Microscopy (HRTEM) with Energy Dispersive Spectroscopy (EDS) was performed on the samples to determine interface structures and uranium diffusion from the UO 2 particles into the tungsten matrix. Local Electrode Atom Probe (LEAP) was also performed to determine stoichiometry of the UO 2 particles. It was seen that uranium diffused approximately 10–15 nm into the tungsten matrix. This is explained in terms of production of oxygen vacancies and Fick's law of diffusion.
AB - W/UO 2 CERMET samples were sintered in a Spark Plasma Sintering (SPS) furnace at various temperature under vacuum and pressure. High Resolution Transmission Electron Microscopy (HRTEM) with Energy Dispersive Spectroscopy (EDS) was performed on the samples to determine interface structures and uranium diffusion from the UO 2 particles into the tungsten matrix. Local Electrode Atom Probe (LEAP) was also performed to determine stoichiometry of the UO 2 particles. It was seen that uranium diffused approximately 10–15 nm into the tungsten matrix. This is explained in terms of production of oxygen vacancies and Fick's law of diffusion.
UR - https://scholarworks.boisestate.edu/mse_facpubs/348
UR - https://doi.org/10.1016/j.jnucmat.2017.12.029
M3 - Article
JO - Materials Science and Engineering Faculty Publications and Presentations
JF - Materials Science and Engineering Faculty Publications and Presentations
ER -