The systems Sr-Zn-{Si,Ge}: Phase equilibria and crystal structure of ternary phases

► Phase equilibria in the Sr-Zn-Si-system are established at 800 °C. ► Phase equilibria in the Sr-Zn-Ge-system are established at 700 °C. ► Crystal structures of the ternary compounds were confirmed by X-ray powder diffraction. ► All ternary compounds except the clathrate-I in the Ge-system are characterized by a homogeneity region.