Interaction of the components in the Ce–Cu–Zn ternary system at 200 °C

The isothermal section of the Ce–Cu–Zn phase diagram was constructed at 200 °C over the whole concentration range as a result of X-ray powder diffraction, wavelength dispersive spectrometry and electron probe microanalysis. The existence of one new ternary compound Ce2Cu5–5.7Zn2–1.3 was observed at this temperature and its crystal structure was refined from X-ray single crystal data (structure type Ce2Ni5Zn2, space group R3¯m, Pearson code hR18, a = 0.4998(1)–0.5078(1) nm, c = 3.6924(5)–3.6987(4) nm). The homogeneity regions were determined for a number of solid solutions on the basis of binary phases.