Investigation of the phase relations in Dy–Cu–Pb system at 870 K

Abstract

The isothermal section of the Dy–Cu–Pb system at 870 K was constructed. Formation of the DyCu 5-based solid solution was observed (DyCu 5− x Pb x , x=0–0.53, AuBe 5 structure type, space group F4̄3m, a=7.1452(2) Å at x=0.53). Formation of DyCuPb (LiGaGe structure type, space group P6 3mc , a=4.5585(3) Å, c=7.3260(3) Å) and Dy 5CuPb 3 (Hf 5CuSn 3 structure type, space group P6 3/mcm , a=9.004(2) Å, c=6.570(2) Å) compounds was observed.