Structure of ζ-Phase Plutonium-Uranium

摘要

The structure of the ζ-phase in the Pu-U system has been determined by neutron powder diffraction. The phase crystallizes in space group Rim with 58 atoms in the primitive unit cell and 10 atoms in the asymmetric unit. The structure is characterized by many short bonds and fits the general pattern of the light actinides. Thermal expansion and elastic data were obtained from the diffraction experiments.