Small-scale Mechanical Testing and Characterization of Fuel-cladding Chemical Interaction between a Ferritic/martensitic HT9 Cladding and Advanced U-based Metallic Fuel Alloy
Fuel cladding chemical interactions (FCCI) occurred on the interface between the nuclear metal fuel and cladding is the primary cause of cladding wastage, weakening cladding mechanical integrity, and placing fuel and cladding at risk. Although the microstructural and phase information of FCCI has been fairly understood, mechanical properties remain less studied due to limited reaction […]
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 […]