Effects of ZrN coating and heat treatment on U-Mo dispersion fuel systems under irradiation
The stability of U-Mo fuel particles embedded in an Al matrix can be enhanced through ZrN coatings and/or heat treatment. The present study investigates the irradiation behavior of fuel plates containing U-Mo fuel particles fabricated under various heat-treatment conditions and ZrN coating thicknesses. Different fission densities were also applied to each fuel plate to evaluate […]
AFIP-7 Post-irradiation Examination Summary Report
The following report contains the results and conclusions from post irradiation examinations performed on the fuel plates irradiated as part of the AFIP-7 experiment, the first test of base monolithic fuel in a fuel assembly consisting of curved, constrained fuel plates. These examinations include visual examination; eddy-current testing to measure oxide growth; profilometry to measure […]
Irradiation performance of a U-7Mo in Al-Si matrix dispersion full-size fuel plate assembly
The Korea Atomic Energy Research Institute (KAERI) is leading the Ki-Jang Research Reactor (KJRR) project with the intent to develop a new reactor for medical isotope production and other nuclear research purposes. The KJRR core is designed to use high density fuel system where uranium alloyed with 7 wt% molybdenum (U-7Mo) particles are dispersed in […]
Impact of SEM acquisition parameters on the porosity analysis of irradiated U-Mo fuel
In this study, the effect of various scanning electron microscope (SEM) imaging parameters including voltage, beam current, and magnification on the porosity analysis of UMo fuel was investigated by varying one parameter at a time during backscattered electron (BSE) micrograph acquisition. Among the parameters assessed, porosity analysis is most sensitive to the SEM voltage. In […]