Mo-UO₂ cermet dispersed fuel stands out as one of the highly promising solid-state fuels for nuclear thermal propulsion (NTP) systems. As the matrix material, the thermal conductivity of Mo is a critical parameter that not only dictates the temperature distribution within the fuel elements and dissipates heat rapidly but also plays a pivotal role in preserving the structural integrity and stability of the reactor core. Therefore, this study presents the pioneering implementation of Frequency-Domain Thermoreflectance (FDTR) technique to investi...
