In-Reactor Behavior of Materials Used to Control Fuel-Cladding Chemical Interaction

摘要

Niobium, vanadium, chromium and titanium metals were irradiation tested in various configurations as candidate oxygen buffer/getter materials in LMFBR fuel pins. Test results indicate in-situ oxidation of buffer/getter materials with specific materials and configurations preventing cladding attack. Some placement configurations were ineffective due to low oxygen mobility. A relative preference for buffer/getter reaction with fission product cesium was also noted. (ERA citation 03:010203)