| Abstract Scope |
Advanced reactors such as microreactors require more efficient fuel types to maintain a small footprint while upholding the inherent safety of self-moderated reactors. Traditionally, self-moderated fuel like U-ZrHx has been used for small research reactors and for space application, specifically in the Space Nuclear Auxiliary Power (SNAP) program. While U-ZrHx is a robust and well understood fuel, its high temperature performance is lacking. Unlike U-ZrHx, U-YHx fuels can maintain the hydride phase to a higher temperature, minimizing hydrogen loss and thus maintaining performance over a wide range of temperatures. However, the fabrication of U-YHx fuels is difficult due to the immiscibility of U and Y, thus a powder metallurgy approach is needed. To be discussed will be the investigation to consolidate these elements through solid state and non-solid state sintering and consolidation techniques. In addition, samples will be characterized by optical microscopy, SEM, and XRD, results will be discussed. |