2016 | ANNUAL REPORT 55 The CAES MaCS facility is well run and was an excellent place to do microscopy and atom probe for my uranium project. — ClarissaYablinsky,Scientist Figure 2. The data added at 500°C in the NL3 regime is presented with orange squares. The evolution in Nb partitioning throughtout the aging, moving from an NL3 decomposition mechanism, to the DP, and finally to DC, shows the chemical evolution of the metallic fuel with time. performing the microscopy due to their radiological training and careful approach to sample handling. Future Activities Because of shipping issues, we were unable to finish the other three samples in FY 2015. After the complete set is finished, we will do further analysis of the kinetics and structure and begin writing a paper that incorporates the results with previous hardening and decomposition mechanism data. Distributed Partnership at a Glance NSUF and Partners Facilities and Capabilities Center for Advanced Energy Studies Microscopy and Characterization Suite Collaborators Los Alamos National Laboratory ClarissaYablinsky (principal investigator), Robert Hackenberg (collaborator), Amy Clarke (collaborator)