Surface Chemistry under Extreme Environments; on understanding the effects of irradiation on quenching heat transfer. The effect of gamma irradiation on Quench heat transfer and wettability is studied. Microscopic analysis revealed surface changes due to gamma irradiation. Oxide micropores on irradiated samples were found to enhance wettability, and increased wettability in irradiated samples resulted in accelerated quenching.
On the prediction of critical heat flux (CHF) is performed using a physics-informed machine learning-aided (hybrid) framework. The hybrid framework has demonstrated superior performance over standalone approaches. The framework applicability domain and model complexity can be extended on the fly. Window-type extrapolation mapping is proposed to help inform future experiments.