b'ment is needed at the SiC claddingcalculate thermal diffusivity and / Sn interface to maintain accuracyconductivity from the instrumentFigure 1. (a) Thermal diffusivity() of and quantify uncertainty in thedata due to the irregular geometry.SiC-SiC composite via LFA (b) relative measurements, as well as to obtainUnderstanding of these effects is theerror in . Red curve indicates the laser measurements near the meltingtechnical goal of this study. heated the inside surface and blue temperature of Sn. curve indicates the laser heated the A specimen of the SiC-SiC claddingoutside surface of the claddingAccomplishments: material was cut from the side of the Identification of the effect oncladding tube and placed perpen-thermal conductivity of the SiC-SiCdicular to the laser beam in the LFA composite from the Sn layer andinstrument to measure thermal possibly the presence of UO 2firstly,diffusivity across the radial direc-requires an understanding of thetion of the tube (obtained by Pavlov thermal conductivity of the claddingand Marshall). Figure 1 shows the tube material itself and secondlyresulting bulk thermal diffusivity vs. how the curvature of the claddingtemperature of the cladding material tube / fuel material impacts theup to 1000C. Additionally, Figure thermal transport model used to1 also gives a graph of the relative 2023|AFC ACCOMPLISHMENTS 63'