A Moessbauer effect and X-ray diffraction investigation of Ti-Sn intermetallic compounds: I. Equilibrium phases

A thorough X-ray diffraction and Moessbauer effect investigation of Ti3Sn, Ti2Sn, Ti5Sn3, Ti6Sn5, and Ti2Sn3 phases in the Ti-Sn binary system has been made. The compounds were verified to have the same crystal structures as those reported in the literature. This work presents the first reported 119Sn Moessbauer effect spectroscopy data on Ti3Sn, Ti2Sn, Ti5Sn3, and Ti6Sn5. The room temperature center shifts (relative to CaSnO3) and quadrupole splittings have been determined for each of the phases by fitting model spectra to the observed data. These results are important for the interpretation of Moessbauer effect measurements on high capacity Sn-based electrode materials for Li-ion batteries