Crystal structure determination of a ternary Cu(In,Sn)₂ intermetallic phase by electron diffraction

The appearance of a bulk Cu-(In,Sn) intermetallic phase was observed in a metal matrix composite based on Cu-Al-Ni shape-memory alloys. Its crystal structure was carefully investigated using a transmission electron microscope by applying diffraction techniques based on the analysis of the symmetry and the relative positions of reflections in the zero- and high-order Laue zones.