Eu-F (Europium-Fluorine)

The Eu-F phase diagram was unknown in [Massalski2]. Figure 1 shows a partial Eu-F phase diagram determined by [1970Bed] by means of differential thermal analysis, X-ray diffraction, and microscopy. No identifications were given to the intermediate phases. Crystal structure data for EuF2 and EuF3 given in Table 1 were adopted from [2007Vil]. In order to identify other phases, the formulae in Table 1 have been assigned according to the location in the phase diagram. [2007Vil] lists crystal structures for EuF2.25 and EuF2.40, but no exact matching phases are found in Table 1. Further clarification may be needed.