|About this Abstract
||MS&T23: Materials Science & Technology
||Ceramics for New Generation Nuclear Energy System Application
||Phase Equilibria and Thermodynamics of Uranium Mononitride Fuel Undergoing Burn-Up in a Lead-cooled Reactor
||Ronald Booth, E. Reece McManus, Antoine Claisse, Theodore M Besmann
|On-Site Speaker (Planned)
Uranium nitride has excellent thermal conductivity and high uranium volume fraction, making it of interest for modern lead-cooled nuclear reactor designs. During the operational life of a UN-fueled reactor many different fission products will be generated, including rare earth and alkaline earth elements. Understanding how the generated fission products interact with the UN fuel is important for predicting their long-term stability. In this work, a thermodynamic database is being developed to analyze the interaction of UN with the developed fission products. The database will be used in thermodynamic equilibrium calculations to understand the phase equilibria and thermodynamic behavior expected, particularly at high burnup.in UN fuel.