Фазовая диаграмма системы Dy-Ni

К оглавлению: Другие диаграммы (Others phase diargams)


Dy-Ni (Dysprosium-Nickel) Y.Y. Pan and P. Nash The assessed Dy-Ni phase diagram is based primarily on the work of [82Che], who reported the existence of ten intermetallic compounds-Dy3Ni, Dy3Ni2, DyNi, DyNi2, DyNi3, Dy2Ni7, DyNi5, Dy2Ni17, DyNi4, and Dy4Ni17. All were found to be line compositions. Dy2Ni7 may be polymorphic, but the polymorphic transformation temperature has not been established. According to [82Che], DyNi and DyNi5 melt congruently at 1248 and 1387 C. Dy3Ni, Dy3Ni2, DyNi2, DyNi3, Dy2Ni7, DyNi4, Dy4Ni17, and Dy2Ni17 form by peritectic reactions at 762, 928, 1258, 1283, 1307, 1336, 1352 and 1321 C, respectively. Three eutectic reactions occur-L = Dy3Ni + Dy3Ni2 (31 at.% Ni and 693 C), L = DyNi + DyNi2 (56 at.% Ni and 1173 C), and L = Dy2Ni17 + Ni ( 93 at.% Ni and 1279 C). The lattice parameter measurements of [82Che] for pure Dy and Ni and for the alloys suggest that neither Dy in (Ni) nor Ni in (Dy) show any detectable solid solubility. The effect of Ni on the bDy = aDy transformation is very small. The magnetization of DyNi was measured as a function of temperature in a field of 14.24 kOe [64Abr]. The effective paramagnetic moment p obtained from the slope of reciprocal susceptibility vs temperature curve was found to be about 10.3 mB per DyNi formula unit. 59Wer: J.H. Wernick and S. Geller, Acta Crystallogr., 12, 662-665 (1959). 60Wer: J.H. Wernick and S. Geller, Trans. AIME, 218, 866-868 (1960). 61Bae: N.C. Baenziger and J.L. Moriarty, Jr., Acta Crystallogr., 14, 946-947 ( 1961). 64Abr: S.C. Abrahams, J.L Bernstein, R.C. Sherwood, J.H. Wernick, and H.J. Williams, J. Phys. Chem. Solids, 25, 1069-1080 (1964). 64Wal: R.E. Walline and W.E. Wallace, J. Chem. Phys., 41(6), 1587-1591 (1964). 65Dwi: A.E. Dwight, R.A. Conner, Jr., and J.W. Downey, Acta Crystallogr., 18, 835-838 (1965). 66Bus: K.H.J. Buschow, J. Less-Common Met., 11, 204-208 (1966). 67Lem: R. Lemaire and D. Paccard, Bull. Soc. Fr. Min. Cristallogr., 90, 311- 315 (1967) in French. 67Pac: D. Paccard and R. Pauthenet, C.R. Acad. Sci., Paris, 264(15), 1056-1059 (1967) in French. 68Man: R.C. Mansey, G.V. Raynor, and I.R. Harris, J. Less-Common Met., 14, 329- 336 (1968). 70Bus: K.H.J. Buschow and A.S. Van Der Goot, J. Less-Common Met., 22(4), 419- 428 (1970). 71Tay: K.N.R. Taylor, Adv. Phys., 20(N87), 551 (1971). 74Mor: J.M. Moreau, D. Paccard, and E. Parthe, Acta Crystallogr. B, 30, 2583- 2586 (1974). 74Nar: K.S.V.L. Narasimhan, R.A. Butera, R.S. Craig, and W.E. Wallace, J. Solid State Chem., 9, 267-272 (1974). 81Che: C.S. Cheng and C. Wang, Proc. Chinese Nat. on Phase Diagram, Nanning, Dec 14-18 (1981) in Chinese. 82Che: C.S. Cheng and C. Wang, Acta Phys. Sin. (China), 31(5), 668-673 (1982) in Chinese. Published in Phase Diagrams of Binary Nickel Alloys, 1991. Complete evaluation contains 6 figures, 4 tables, and 27 references. 1