About this Abstract |
Meeting |
MS&T24: Materials Science & Technology
|
Symposium
|
Ceramic Materials for Nuclear Energy Systems
|
Presentation Title |
Developments in Producing Pyrolytic Carbon Coatings for Advanced Particle Fuel Forms |
Author(s) |
Bryan Conry, Eddie Lopez-Honorato, Ryan Heldt, Flavio Dal Forno Chuahy, Oluwafemi Oyedeji, Tyler Gerczak |
On-Site Speaker (Planned) |
Bryan Conry |
Abstract Scope |
Fluidized-bed chemical vapor deposition (FB-CVD) has long been the process of choice for coating nuclear fuel particles, e.g., with protective pyrolytic carbon (PyC) coatings. The quality of coating produced via FB-CVD, and correspondingly the performance of the fuel, is dependent upon many variables, including local temperature gradients and particle movement during the coating process. Accordingly, an understanding of these factors is essential to improve the development of coated particle fuel. Exploration of this variable space may open the door for fabrication and processing of advanced particle fuel forms for nuclear applications. In the present work, the impact of changing system configuration on the quality of PyC coatings deposited on spherical surrogate material will be discussed and compared to computational fluid dynamics (CFD) simulations. Additionally, the relationship between system configuration, fluidization behavior, and PyC coating quality for highly-irregular morphology feedstock will be discussed, considering the potential of guiding FB-CVD experimental design. |