Ni-Bi-Zn ternary system investigation using diffusion couples technique

Abstract

An investigation of Ni-Bi-Zn system was performed using a diffusion couples technique and the diffusion paths were constructed. For that purpose diffusion couples consisting of solid Ni and liquid Bi-Zn phase were annealed at 450?C. The phase and chemical compositions of the contact zone were determined by scanning electron microscope. The diffusion layers found in the Ni-Bi-Zn ternary system were Beta1, ?-Ni5Zn21 and liquid. No intermetallic compounds in Bi-Ni binary phase diagram were observed.