b'Figure 1. Interface between uncoated and Cr coated portion of the cladding for Byron-2 Rod 47IFigure 2. Second cycle Cr coated cladding pristine with excellent coating adherence and little indication of crudobtained from the ORNL post irradia- approved. Preparations for shipment tion examinations on the Byron-2 firstof 25 irradiated rods from Byron to cycle LTRs (Figure 1). Pool-side exami- INL in December 2023 are continuing.nations of the second cycle Doel-4Departure from Nucleate Boiling and Byron LTRs were very positivetesting was completed on NCS Cr with little or no crud accumulationcoated cladding on both AXIOM (Figure 2). Re-insertion in both Doel-4and Optimized ZIRLO substrates. and Byron-2 for a third cycle wasThe critical heat flux for the coated 2023|AFC ACCOMPLISHMENTS 133'