Phase equilibria and ternary phase formation in the In–Ni–P system

Abstract

Isothermal sections of the In–Ni–P phase diagram have been determined at 600 °C and 470 °C. Two new ternary phases not previously identified in bulk samples were found. A phase with the composition Ni57In22P21 is present at both 600 °C and 470 °C and was found by differential thermal analysis to melt at 736 °C. The phase Ni2InP was found to be in equilibrium with InP at 470 °C, but it does not appear in the 600 °C isotherm since it melts at 526 °C. The phases (In), Ni2P, Ni5P4, and NiP2 are in equilibrium with InP at both temperatures studied.