The isothermal section at 750 °C of the Ce–Pd–In system

Phase equilibria in the Ce–Pd–In system at 750 °C were investigated in the whole concentration range not including the Pd-rich region, employing optical microscopy, microprobe analysis and X-ray diffraction. Besides the known intermetallic compounds (CePdIn, CePdIn2, CePd2In, Ce8Pd24In and the double-branched solid solutions Ce1.95Pd2+2xIn1−x and Ce2+xPd1.85In1−x), eight novel ternary compounds were revealed in the system. Furthermore, Pd/In solubilities were found in some of the novel ternary compounds and in the equiatomic compound. The complex phase equilibria resulting from the large number of binary and ternary compounds were determined.