THE TERNARY IN-NI-SB PHASE-DIAGRAM IN THE VICINITY OF THE BINARY IN-NI SYSTEM

The central part of the In-Ni phase diagram (0.45 less than or equal t o X-ln less than or equal to 0.60) was reinvestigated and the adjoinin g part of the ternary In-Ni-Sb phase diagram was studied experimentall y, The investigation included thermal analyses (DTA), x-ray powder dif fraction, and microprobe studies (EPMA), The ternary equilibrium phase relations were studied for three isothermal sections at 750, 825, and 900 degrees C, Four new invariant ternary phase reactions were identi fied in the temperature range between 805 and 895 degrees C, A complet e reaction scheme was constructed in the corresponding composition ran ge, and the liquidus surface was derived from DTA data, The lattice pa rameter of the solid solution of Sb in CoSn-type NiIn was studied as a function of composition by means of powder diffraction using the Guin ier-Huber technique.