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Meeting 2023 TMS Annual Meeting & Exhibition
Symposium Ceramic Materials for Nuclear Energy Research and Applications
Presentation Title Phase Equilibria and Thermodynamics of Tri-carbide Fuels for Nuclear Thermal Propulsion
Author(s) Ronald Booth, Juliano Schrone Pinto, Erofili Kardoulaki, Ken Mcclellan, Jhonathan Rosales, Theodore Besmann
On-Site Speaker (Planned) Ronald Booth
Abstract Scope Nuclear thermal propulsion (NTP) is an exceptional alternative to chemical propulsion for space travel due to its increased power density providing twice the specific impulse (the ratio of thrust to propellent mass flow rate) of chemical propulsion. Uranium monocarbide is the nuclear material of most interest for NTP due to its high thermal conductivity and high uranium atom density. However, NTP requires a nuclear reactor with high temperature stability to over 2700oC, where UC has a low melting point of below that at 2420oC. To address this issue there is interest in using a tri-carbide nuclear fuel of UC-ZrC-TaC. In the current work this system has been thermodynamically modelled to predict phase equilibria and behavior to determine temperature stability over 2700oC.
Proceedings Inclusion? Planned:
Keywords Nuclear Materials, Phase Transformations, Modeling and Simulation

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

Advanced Characterization and Modeling of Nanoprecipitates in Spent Nuclear Fuel
Atomic Scale Simulation of Amorphous Intergranular Films in Nuclear Fuel Materials
Atomistic-scale Simulations used to Simulate Creep in Oxide Fuel
Atomistic and Mesoscale Modeling of Fission Gas and Fission Products Diffusivity in TRISO Fuel Kernels
Atomistic Investigation of Radiation-induced Defects in ThO2
Cluster Dynamics Modeling of Defects and Fission Gas in Gd Doped UO2 under Irradiation
Comprehensive Characterization of Damage in Ion Irradiated Ceramics for Validation of Atomistic Models
Defect Chemistry and Radiation Stability of (Gd & Zr) Co-doped UO2
Development of UC/UO2 Composite Fuels for Light Water Reactors
Diffusion Properties in Uranium-plutonium Mixed Oxides: Atomic Scale Investigation of the Effect of Composition and Chemical Disorder
Emulation of Microstructures and Tritium Behavior in Lithium Aluminate by Ion Irradiation
Exploring Irradiation-induced Phase Evolution in WC
Hidden Defect Evolution Mechanism in ThO2 Revealed by Atomistic Modeling
High-entropy Carbide Ceramics: New Materials for Extreme Environments in Nuclear Energy Applications
Impact of Resonance Scattering on the Thermal Conductivity of ThO2
Improving Uranium Mononitride Behaviour using Uranium Diboride Addition
Irradiation- and Dopant-induced Structural Changes in Ceramic Nuclear Fuels Probed via Elastic and Optical Properties
Low-temperature Fabrication of Ceramic Tritium Breeder Materials, for Enhanced Control of Microstructure and Phase Formation
Microstructural Characterization of Neutron Irradiated Concrete Minerals
Microstructural, Mechanical and Thermal Characterization of High Entropy Carbide Ceramics
Modelling the Melting Temperature of CrUO4 to Assess its Behaviour during the Sintering of Cr-doped UO2
Multiphysics Modeling of High Burnup UO2 at Mesoscale
Multiscale Modeling for High-burnup Structure Formation in UO2
O-1: Uranium Silicide Processing for Advanced Reactors
O-31: Radiation Damage in Lithium Oxide, a Surrogate for Beryllium Carbide
Oxidation Behavior and Mechanisms of the SiC Coating in TRISO Fuel Particles
Phase Equilibria and Thermodynamics of Tri-carbide Fuels for Nuclear Thermal Propulsion
Predicting Mechanical Behavior of Uranium Oxide Fuel Pellets Using Full-field Defect Diffusion Modeling in a Crystal Plasticity Framework
Quantifying the Impact of Fast Interface Diffusion and Free Surface Evolution on Fission Gas Release in UO2 Using a Phase-field Model
Radiation Shielding Ceramics with Enhanced Performance and Scalability
Radiation Studies on the TiZrNbHfTa High Entropy Alloy and Its Hydrides
Relating Microstructural Evolution and Stoichiometry to Tritium Release from Ternary Lithium Ceramics
Revealing The Microstructure and Irradiation Effects on UO2 Fracture via Coupled Phase-field and MD Simulations Approach
Scanning Transmission Electron Microscopy of Nanoprecipitates in Spent UO2 Nuclear Fuel
Silica Formation on SiC Following Steam Attack
Simulation of Irradiation-induced Bubble Over-pressurization and Application in Fuel Performance
Soft X-ray Synchrotron Radiation Spectromicroscopy of Spent Nuclear Fuel Focused Ion Beam Sections
Surface Modification Strategies for Hydrogen Retention in Hydride Moderators
Susceptibility of Nuclear Fuel Ceramics to Oxidation and Hydridization during Off Normal Events
Thermomechanical Characterization of Advanced Reactor Alloys and Composites Exposed to High-temperature Gas Environments
Zirconia-coated Uranic Fuel Particles Processing and In Situ Sintering Characterisation

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