The High Performance Research Reactor Fuel Development (HPPRFD) program is responsible for developing low enriched uranium (LEU) fuel substitutes for high performance reactors fueled with highly enriched uranium (HEU) that have not yet been converted to LEU. The uranium-molybdenum (U-Mo) fuel system was selected for this effort. In this study,...
Cellulose nanocrystal (CNC) aerogels are coated with thin conformal layers of Al₂O₃ using
atomic layer deposition to form hybrid organic/inorganic nanocomposites. Electron probe
microanalysis and scanning electron microscopy analysis indicated the Al₂O₃ penetrated more
than 1500 μm into the aerogel for extended precursor pulse and exposure/purge times. The
measured profile...
Natural hydraulic barriers exist at Yucca Mountain, Nevada, a potential high-level nuclear waste repository, that have been identified as possible lateral diversions for reducing deep percolation through the waste storage area. Historical development of the conceptual model of lateral diversion has been limited by available field data, but numerical investigations...