Фазовая диаграмма системы Ni-Te

К оглавлению: Другие диаграммы (Others phase diargams)

Ni-Te (Nickel-Tellurium) S.Y. Lee and P. Nash The assessed Ni-Te phase diagram is based on [70Ett], [58Wes], and [72Kle], with review of the data of [56Uch] and [66Bar]. [66Bar] reported that Te was insoluble in (Ni) based on the lattice parameter measurement. The solubility of Ni in (Te) was reported to be 0.022 at.% Te at room temperature also on the basis of lattice parameter measurement [70Aba]. No other experimental data on solubility are available. Magnetic susceptibility measurements between 50 and 66.6 at.% Te by [43Kle] showed weak, temperature-independent paramagnetism, in some cases slightly field-strength dependent. [49Gal] found the magnetic susceptibility of NiTe to be very low and decreasing slightly as temperature increases. Extensive studies on the magnetic properties of nickel tellurides between 9 and 66.7 at.% Te and temperatures to 1150 C have been made by [56Uch]. [ 56Uch] observed the Curie temperature of the ferromagnetic alloys in the range of (Ni) to NiTe0.67 (40.1 at.% Te) to increase from 327 C for NiTe0.3 ( 23.1 at.% Te) to 512 C for NiTe0.65 (39.4 at.% Te) and suggested a ferromagnetic phase with composition NiTe0.33 (24.8 at.% Te) and a paramagnetic phase with composition above NiTe0.7 (41.2 at.% Te). [66Bar] made magnetic susceptibility measurements for different nickel tellurides at six different temperatures between -183 and 450 C; the ferromagnetic phase reported by [56Uch] was not observed. The suggestion by [65Kok] that the ferromagnetism found in the range between (Ni) and NiTe0.6 (37.5 at.% Te) is due to the presence of metallic Ni rather than due to the phase at NiTe0.33 ( 24.8 at.% Te) as assumed by [56Uch] is accepted in this evaluation because this phase was not confirmed by other investigators. For all nickel tellurides, weak paramagnetism was observed with magnetic susceptibility slightly dependent on temperature [66Bar]. There is reasonable agreement on magnetic susceptibility between [56Uch] and [66Bar] for an alloy with NiTe0.7 (41.2 at.% Te) at high temperatures, but the values from [56Uch] at -163 C were twice as high as those of [66Bar]. The results for NiTe from [66Bar] showed good agreement with those from [49Gal], whereas those for NiTe (50 at.% Te), NiTe1.2 (54.5 at.% Te), and NiTe1.5 (60 at.% Te) from [56Uch] were 20 to 30% lower than those from [66Bar]. The field strength dependence reported by [ 43Kle] was not confirmed [66Bar]. The more extensive work of [66Bar], which shows agreement with that of [49Gal], is preferred in this evaluation. 38Ten: S. Tengner, Z. Anorg. Allg. Chem., 239, 126-132 (1938) in German. 43Kle: W. Klemm and N. Fratini, Z. Anorg. Allg. Chem., 251, 222-232 (1943) in German. 49Gal: F. Gal›perin and T. Perekalina, Dokl. Akad. Nauk SSSR, 69, 19-22 (1949) in Russian. 56Uch: E. Uchida and H. Kondoh, J. Phys. Soc. Jpn., 11(1), 21-27 (1956). 58Wes: E. Westrum, Jr. and R. Machol, J. Chem. Phys., 29(4), 824-828 (1958). 60Shc: S. Shcukarev and M. Apurina, Zh. Neorg. Khim. SSSR, 5, 2410-2413 (1960) in Russian; TR: J. Inorg. Chem., 5(11), 1167-1169 (1960). 65Kok: R. Kok, G. Wiegers, and F. Jellinek, Recueil, 84, 1585-1588 (1965). 66Bar: J. Barstard, F. Gronvold, E. Rost, and E. Vestersjo, Acta Chem. Scand., 20(10), 2865-2879 (1966). 70Aba: S. Abakarov, G. Bagduev, and P. Dazhaev, Izv. Akad. Nauk SSSR Neorg. Mater., 6(6), 1169-1170 (1970). 70Ett: M. Ettenberg, K. Komarek, and E. Miller, J. Solid State Chem., 1, 583- 592 (1970). 72Car: R. Carbonara and M. Hoch, Monatsh. Chem., 103, 695-715 (1972). 72Kle: K. Klepp and K. Komarek, Monatsh. Chem., 103, 934-946 (1972). Published in Phase Diagrams of Binary Nickel Alloys, 1991. Complete evaluation contains 3 figures, 5 tables, and 23 references. Special Points of the Ni-Te System