Ni5‐δSn4Zn (δ ∼ 0.25) from single‐crystal data
Abstract:Work on the ternary Ni–Sn–Zn phase diagram revealed the existence of the title compound pentanickel tetratin zinc, Ni3.17Sn2.67Zn0.67 [Schmetterer et al. (2012). Intermetallics, doi:10.1016/j.intermet.2011.05.025]. It crystallizes in the Ni5Ga3Ge2 structure type (orthorhombic, Cmcm) and is related to the InNi2 type (hexagonal, P63/mmc) of the neighbouring Ni3Sn2 high‐temperature (HT) phase, but is not a superstructure. The crystal structure was determined using single‐crystal X‐ray diffraction. Its homogeneity range was characterized using electron microprobe analysis. Phase analysis at various temperatures indicated that the phase decomposes between 1073 and 1173 K, where a more extended ternary solid solution of the Ni3Sn2 HT phase was found instead.
Document Type: Research Article
Publication date: March 15, 2012