Thermal properties measurement of TRISO particle coatings from room temperature to 900 °C using laser-based thermoreflectance methods
The thermal properties of tristructural isotropic (TRISO) particle coatings have been measured using laser-based thermoreflectance methods from room temperature to 900 °C. At room temperature the pyrocarbon coatings have comparable thermal conductivities below 10 W·m-1·K-1, whereas the SiC coating has a thermal conductivity around 90 W·m-1·K-1. The thermal diffusivities of all coatings display significant reduction […]
A square pulse thermoreflectance technique for the measurement of thermal properties
We report on a laser-based square pulse thermoreflectance (SPTR) technique for the measurement of thermal properties for a wide range of materials. SPTR adopts the pump-probe thermoreflectance principle to monitor the evolution of local temperature after square pulse excitation. The technique features a compact setup, high spatial resolution, and fast data collection. By comparing the […]