Abstract
Metallographie, thermal, and X-ray techniques were used to determine the phase relations in the Nd-Zn system. Eight compounds, three eutectics and a eutectoid were found. The compounds NdZn, NdZn2, and Nd2Znn melt congruently at 923°, 925°, and 981°C respectively. The compounds Nd3Zn11, NdZn4.46, and Nd3Zn22 undergo peritectic decomposition at 870°, 902°, and 950°C respectively, while NdZn3 undergoes peritectoid decomposition at 849°C. The eutectics occur at 12 wt pct Zn and 630°C, 38 wt pct Zn and 868°C, and 56 wt pct Zn and 854°C. The eutectoid occurs at 4 wt pct Zn and 622°C. The existence of a NdZn12 phase of the SmZn12 type structure has been confirmed. An allotropie transformation between the tetragonal NdZn11 structure and the hexagonal NdZn12 defect structure is proposed.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
Yu. B. Kuz’ma, P. I. Kripyakevich, and D. F. Frankevich:Izv. Akad. Nauk SSSR. Neorg. Mater., 1965, vol. 1, pp. 1547–53.
Yu. B. Kuz’ma, P. I. Kripyakevich, and N. S. Ugrin:Inorg. Mater., 1966, vol. 2, pp. 544–48.
A. Iandelli and A. Palenzona:J. Less-CommonMetals, 1965, vol. 9, pp. 1–6.
A. Iandelli and A. Palenzona:J. Less-Common Metals, 1967, vol. 12, pp. 333–43.
M. L. Fornasini and F. Merlo:Rend. Accad. Naz. Lincei, 1967, vol. 43, pp. 357–63.
D. J. Michel, E. Ryba, and P. K. Kejriwal:J. Less-Common Metals, 1966, vol. 11, pp. 67–69, and private communication.
E. Veleckis, R. V. Schablaske, I. Johnson, and H. M. Feder:Trans. TMS-AIME, 1967, vol. 239, pp. 58–63.
G. Bruzzone, M. L. Fornasini, and F. Merlo:J. Less-Common Metals, 1970, vol. 22, pp. 253–64.
E. Veleckis, R. V. Schablaske, and B. S. Tani:Crystal Structure of the Zinc-Rich Phases in Lanthanon-Zinc Systems, p. 162, Report ANL-7225,1966. Oearinghouse, U.S. Department of Commerce, Springfield, Virginia, 22151.
I. Johnson and I. G. Dillon:The Solubility of Metals in Liquid Zinc, ANL-7083,1965, F.S.T.I., National Bureau of Standards, U. S. Dept. of Commerce, Springfield, Virginia, 22151.
P. Chiotti, J. T. Mason, and K. J. Gill:Trans. TMS-AIME, 1963, vol. 227, pp. 910–16.
P. Chiotti and J. T. Mason:Trans. TMS-AIME, 1965, vol. 233, pp. 786–95.
P. Chiotti and J. T. Mason:Trans. TMS-AIME, 1967, vol. 239, pp. 547–52.
P. Chiotti and J.T. Mason:Trans. TMS-AIME, 1968, vol. 242, pp. 1167–71.
J. T. Mason and P. Chiotti:Met. Trans., 1970, vol. 1, pp. 2119–23.
P. Chiotti and J. T. Mason:Met. Trans., 1971, vol. 2, pp. 967–73.
F. H. Spedding and B. J. Beaudry: private communication, Ames Laboratory, Ames, Iowa 50010.
L. V. Sandor and J. A. Kundig: Section 2, Paper No. 7 inCorrosion by Liquid Metals, J. E. Oraley and J. R. Weeks, eds., Plenum Press, New York and London,1970.
J. T. Mason, K. S. Sree Harsha, and P. Chiotti:Acta Cryst, 1970, vol. B26, pp. 356–61.
A. C. Larson and D. T. Cromer:Acta Cryst., 1961, vol. 14, pp. 73–74.
K. S. Sree Harsha: Ph.D. thesis, 1964, The Pennsylvania State University, University Park, Pa.
A. C. Larson and D. T. Cromer:Acta Cryst., 1967, vol. 23, pp. 70–77.
P. I. Kripyakevich, Yu. B. Kuz’ma, and N. S. Ugrin:Zh. Strukt. Khim., 1967, vol. 8, pp. 703–05.
M. J. Sanderson and N. C. Baenziger:Acta Cryst., 1953, vol. 6, pp. 627–31.
J. T. Mason and P. Chiotti:Acta Cryst., 1971, vol. B27, pp. 1789–92.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Mason, J.T., Chiotti, P. The Nd-Zn phase diagram. Metall Trans 3, 2851–2855 (1972). https://doi.org/10.1007/BF02652852
Received:
Published:
Issue Date:
DOI: https://doi.org/10.1007/BF02652852