Phase equilibria in the system Hf-Zr-Ge at 1350 °C

The Hf-Zr-Ge system was studied for the isothermal section at 1350 °C. The homogeneity ranges of the various ternary solid solutions of binary Hf-Ge and Zr-Ge compounds were determined. X-ray powder diffraction (XRD) as well as optical microscopy was used for initial sample characterisation and electron probe microanalysis (EPMA) of the annealed samples was used to determine the exact phase compositions in the ternary system. The lattice parameters of the various ternary solid solutions were determined as a function of composition. No ternary compound was found to exist in the section at 1350 °C.