Фазовая диаграмма системы Hg-Zn

К оглавлению: Другие диаграммы (Others phase diargams)


Hg-Zn (Mercury-Zinc) L.A. Zabdyr and C. Guminski The assessed Hg-Zn phase diagram is taken basically from [Hansen], with the following modifications: the solubility of Hg in (Zn) is from [67Tan] and [ 68Bia]; the solid solubility of Zn in (Hg) is from [71Ale]; and the formation of Hg3Zn is adopted from [88Kub]. The present evaluation is based on the reviews of [Hansen], [Elliott], [Shunk], [Hultgren,B], and [86Gum]. Although both b and Hg3Zn were identified, the thermal arrests at 20 and 18 C, respectively, were not recorded by DTA, probably due to the slow reaction kinetics and the small temperature difference. As noted in [Hansen] and confirmed by [60Ben], it takes a very long time to complete peritectic reactions in the Hg-Zn system. [60Ben] observed that (Zn) may be metastably retained in Hg-rich alloys below 42.9 C. Similarly, the g phase may be retained in Hg-rich alloys below 20 C [82Pus]. 60Ben: L. Benjamin and R.F. Strickland-Constable, Acta Metall., 8, 362-372 ( 1960). 67Tan: I. Tangerini, Metall. Ital., 59, 502-504 (1967) in Italian. 68Bia: A. Bianchini and S. Pozzoli, Metall. Ital., 60, 495-500 (1968) in Italian. 71Ale: B.N. Aleksandrov and O.I. Lomonos, Zh. Fiz. Khim., 45, 3003-3006 (1971) in Russian. 82Pus: M. Puselj, Z. Ban, and A. Drasner, Z. Naturforsch. B, 37, 557-559 (1982) . 86Gum: C. Guminski and Z. Galus, in "Metals in Mercury," Solubility Data Series, Vol. 25, C. Hirayama, Ed., Pergamon, Oxford, 385-401 (1986). 88Kub: R. Kubiak, M. Wolcyrz, and W. Zacharko, Cryst. Res. Technol., 23, K57- K59 (1988). Submitted to the APD Program. Complete evaluation contains 4 figures, 5 tables, and 36 references. Special Points of the Hg-Zn System