Фазовая диаграмма системы Ir-Sb

К оглавлению: Другие диаграммы (Others phase diargams)


Ir-Sb (Iridium-Antimony) H. Okamoto The assessed Ir-Sb phase diagram is based primarily on the data of [57Kuz]. The melting points were determined from cooling curves of alloys prepared from "chemically pure" components. The equilibrium phases are (1) the liquid, L; (2) the fcc terminal solid solution, (Ir); (3) hexagonal NiAs-type IrSb; (4) monoclinic IrSb2; (5) cubic CoAs3-type IrSb3; and (6) the rhombohedral terminal solid solution, (Sb). No information is available on the (Ir) phase. The melting point of IrSb2 is higher than 1050 C, because [77Kje] only measured the lattice parameters up to that temperature. IrSb3 forms by a peritectic reaction [57Kuz, 61Kje1]. According to these two reports, the peritectic temperature is probably close to 1000 C. The melting point of aSb is 630.755 C [Melt]. The L = IrSb3 + (aSb) eutectic temperature is 615 C [ 57Kuz]. 56Zhu: N.N. Zhuravlev and G.S. Zhdanov, Kristallografiya, 1(5), 509-513 (1956) in Russian; TR: Sov. Phys. Crystallogr., 1(5), 404-406 (1956). 57Kuz: R.N. Kuz'min, G.S. Zhdanov, and N.N. Zhuravlev, Kristallografiya, 2(1), 48-50 (1957) in Russian; TR: Sov. Phys. Crystallogr., 2(1), 42-44 (1957). 58Kuz: R.N. Kuz'min, Kristallografiya, 3, 366-367 (1958) in Russian; TR: Sov. Phys. Crystallogr., 3, 367-368 (1958). 60Zhu: N.N. Zhuravlev, G.S. Zhdanov, and R.N. Kuz'min, Kristallografiya, 5(4), 553-562 (1960) in Russian; TR: Sov. Phys. Crystallogr., 5(4), 532-539 (1960). 61Hul: F. Hulliger, Helv. Phys. Acta, 34, 782-786 (1961). 61Kje1: A. Kjekshus, Acta Chem. Scand., 15(3), 678-681 (1961). 61Kje2: A. Kjekshus and G. Pedersen, Acta Crystallogr., 14, 1065-1070 (1961). 71Kje: A. Kjekshus, Acta Chem. Scand., 25(2), 411-422 (1971). 74Kje: A. Kjekshus and T. Rakke, Acta Chem. Scand., 28(1), 99-103 (1974). 77Kje: A. Kjekshus, Acta Chem. Scand., 31(7), 517-529 (1977). Submitted to the APD Program. Complete evaluation contains 1 figure, 2 tables, and 11 references. 1