Abstract
A new assessment of the Nb-Sn system is proposed considering the Nb3Sn phase stable down below room temperature. The Gibbs energy of formation of the solution and compound phases in the Nb-Sn system were derived from an optimization procedure using all the available experimental thermodynamic and phase diagram data. In particular, the enthalpy of formation of the Nb3Sn phase at 1350 °C was determined experimentally in this study. The thermodynamic description of the intermetallic compounds was made using a sublattice model, while a Redlish-Kister polynomial was used for the solution phases.
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References
O. Kubaschewski and W.A. Dench: “The Heats of Formation in the Systems Titanium-Aluminum and Titanium-Iron,” Acta. Met., 1955, 3, pp. 329–46.
M.I. Agafonova, V.V. Baron, and E.M. Cavitsky: Otd. Tehn. Y Metallurgia y toplivo, 1959, 5, pp. 138–41.
P. Fowler: NASA Report, 1963, N65 17508.
T.G. Ellis and H.A. Wilhem: “Phase Equilibria and Crystallography for the Niobium-Tin System,” J. Less Common Met., 1964, 7, pp. 67–83.
H.W. Schadler and H.S. Rosenbaum: Proc. Annual Meeting of the American Institute of Metal Engineers, February 1964.
B.C. Kogan, A.N. Kryvko, B.G. Lazarev, L.C. Lazareva, A.A. Matsakova, and O.N. Ovtcharenko: Metalloved. y metallofiz. Cverp., 1965, pp. 76–82.
J.H.N. van Vucht, D.J. van Ooijen, and H.A.C.M. Bruning: “Some Investigations on the Niobium-Tin Phase Diagram,” Philips Res. Repts., 1965, 20, 136–61.
B.N. Cvietchnikov, B.M. Pan, and Y.I. Beletskye: Metalloved. Fiz.-chimi. I metallofiz. Cvierp., 1967, pp. 152–57.
V.G. Kouznetsova, B.A. Kovaleva, and B.B. Bieznocikova: Metalloved. Fiz.-chimi. I metallofiz. Cvierp., 1967, pp. 146–52.
F.A. Shunk: Constitution of Binary Alloys, Second Supplement, McGraw-Hill Book Company, New York, 1969.
J.P. Charlesworth, I. Macphail, and P.E. Madsen: “Experimental Work on the Niobium-Tin Constitution Diagram and Related Studies,” J. Mater. Sci., 1970, 5, pp. 580–603.
A.A. Matstakova, and B.G. Lazarev: “Peculiarities of the Constitution Phase Diagram of the System Niobium-Tin,” Fiz. Metalloved i Metallovedenie, 1973, 35(5), pp. 148–56.
G.A. Malets: Vestnik Akad. Navuk B. SSR, Ser. Khim. Navuk, 1975, 1, p. 126.
A.R. Miedema, P.F. Châtel, and F.R. de Boer: “Cohesion in Alloys—Fundamentals of a Semi-Empirical Model,” Physica, 1980, 100B(1).
J.C. Gachon, M. Notin, and J. Hertz: “The Enthalpy of Mixing of the Intermediate Phases in the Systems FeTi, CoTi, and NiTi by Direct Reaction Calorimetry,” Thermochemica Acta, 1981, 48, p. 155.
R.A. Schiffman and D.M. Bailey: “Thermodynamics of the Incongruently Subliming Niobium-Tin System,” High Temp. Sci., 1982, 15, pp. 165–77.
T.B. Massalski, J.L. Murray, L.H. Bennett, and H. Baker, ed.: Binary Alloy Phase Diagrams, American Society for Metals Research, Metals Park, OH, 1986.
F. deBoer, R. Boom, W.C. Mattens, A.R. Miedema, and A.K. Niessen: Cohesion in Metals, Transition Metal Alloys, North Holland, Amsterdam, the Netherlands, 1988, pp. 390–401.
G.C. Bourhanov, M.B. Glazov, V.G. Ivantchenko, and E.A. Chichky: Metallofizika, 1989, 11(5), pp. 32–35.
I. Barin and G. Platzki: Thermochemical Data of Pure Substances, VHC Verlag, Weinheim, Germany, 1995.
S.V. Meschel and O.J. Kleppa: “Standard Enthalpies of Formation of Some 3d, 4d and 5d Transition-Metal Stannides by Direct Synthesis Calorimetry,” Thermochimica Acta, 1998, 314, pp. 205–12.
C. Toffolon, C. Servant, and B. Sundman: “Thermodynamic Assessment of the Nb-Sn System,” J. Phase Equilibria, 1998, 19(5), pp. 479–85.
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Toffolon, C., Servant, C., Gachon, J.C. et al. Reassessment of the Nb-Sn system. JPE 23, 134 (2002). https://doi.org/10.1361/1054971023604071
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DOI: https://doi.org/10.1361/1054971023604071