b'mately 400C.After irradiation, initialperformance following irradiation.Figure 2. Images of irradiated FeCrAl post-irradiation examination (PIE)Tests were conducted at 1200 andafter high-temperature oxidation testing was performed at Idaho National1300C with weight measurementsat 1200C and 1300C for 1 minute, 15 minutes, and 90 minutes as indicatedLaboratory (INL) and the rodlet wastaken before and after oxidation shipped to ORNLs Irradiated Fuelstesting. Cross-sections of the cladding Examination Laboratory (IFEL) hotwere metallographically mounted and cell facility for additional PIE in theoptical microscopy was performed. Severe Accident Test Station (SATS).Measurements of the oxidation layer Project Description: before and after high-temperature In fiscal year (FY)21, ATF-18 samplestesting were collected. were sectioned from the irradiatedPretest characterization was performed rodlet and oxidation kinetics wereon the ATF-18 rodlet to determine evaluated to access the candidatethe fuel, fuel-cladding bond, and cladding high-temperature oxidationcladding behavior. Figure 1 shows a 2021|AFC ACCOMPLISHMENTS 51'