Experimental study of ternary Nd–Pt–Fe phase equilibria at 500°C

The phase equilibria in the ternary Nd–Pt–Fe system at 500°C have been established by X-ray diffraction (XRD), scanning electron microscopy (SEM) and energy dispersion spectroscopy (EDS) techniques. Twelve single phase regions (including solid solution regions of the binary compounds) were determined. Twenty-one two phase regions and ten three phase regions were identified to exist at this isothermal section. No Nd₃Pt₄ phase and new ternary compounds were found.