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Licensed Unlicensed Requires Authentication Published by De Gruyter January 8, 2022

Evaluation of the excess volume and density of liquid Al –Sr alloys

Zhonghua Zhang, Xiufang Bian and Yan Wang

Abstract

The excess volume and density of liquid Al –Sr alloys at 1323, 1423 and 1523 K have been evaluated from the enthalpy of mixing and the excess entropy, using the solution model based on the free-volume theory. It has been found that the excess volume of liquid Al –Sr alloys exhibits a minimum at xSr ≈ 0.31, well consistent with the thermodynamic results that both the enthalpy of mixing and excess entropy exhibit minima at xSr ≈ 0.35. By contrast, the density of liquid alloys shows a maximum at xSr ≈ 0.31. The excess volume and density, in combination with the thermodynamic properties and the phase diagram, suggest the presence of complexes of the type Al2Sr in liquid Al –Sr alloys. The excess volume and the density of liquid alloys slightly decrease with increasing temperature.


Dr. Zhonghua Zhang The Key Laboratory of Liquid Structure and Heredity of Materials Shandong University (southern campus) 73 Jingshi Road, Jinan 250061, P.R. China Tel.: +86 531 839 5011 Fax: +86 531 295 5999

  1. The authors gratefully acknowledge the support of the National Natural Science Foundation of China (No. 50071028) and the Shandong Natural Science Foundation of China (No. Z2001F02).

References

1 Iida, T.; Guthrie, R.I.L.: The Physical Properties of Liquid Metals, Clarendon Press, Oxford (1993).Search in Google Scholar

2 Scatchard, G.: Trans. Faraday Soc. 33 (1937) 160.10.1039/tf9373300160Search in Google Scholar

3 Kleppa, O.J.: J. Phys. Chem. 64 (1960) 1542.10.1021/j100839a049Search in Google Scholar

4 Kleppa, O.J.; Kaplan, M.; Thalmayer, C.E.: J. Phys. Chem. 65 (1961) 843.10.1021/j100823a031Search in Google Scholar

5 Predel B.; Eman, A.: Mater. Sci. Eng. 4 (1969) 287.10.1016/0025-5416(69)90005-6Search in Google Scholar

6 Crawley, A.F.: Int. Met. Rev. 19 (1974) 32.10.1179/095066074790137015Search in Google Scholar

7 Marcus, Y.: Introduction to Liquid State Chemistry, Chapter 8, John Wiley & Sons, London (1977).Search in Google Scholar

8 Kubaschewski, O.; Alcock, C.B.: Metallurgical Thermochemistry, Pergamon Press, Oxford (1979) 55.Search in Google Scholar

9 Tanaka, T.; Gokcen, N.A.; Morita, Z.I.; Iida, T.: Z. Metallkd. 84 (1993) 192.Search in Google Scholar

10 Sommer, F.; Lee, J.J.; Predel, B.: Z. Metallkd. 74 (1983) 100.Search in Google Scholar

11 Alcock, C.B.; Itkin, V.P.: Bull. Alloy Phase Diagr. 10 (1989) 624.10.1007/BF02877629Search in Google Scholar

12 Srikanth, S.; Jacob, K.T.: Z. Metallkd. 82 (1991) 675.Search in Google Scholar

13 Lupis, C.H.P.; Elliott, J.F.: Acta Metall. 15 (1967) 265.10.1016/0001-6160(67)90202-7Search in Google Scholar

14 Turnbull, D.; Cohen, M.H.: J. Chem. Phys. 34 (1961) 120.10.1063/1.1731549Search in Google Scholar

15 Gokcen, N.A.: Statistical Thermodynamics of Alloys, Plenum Press, New York (1986) 81.10.1007/978-1-4684-5053-8_4Search in Google Scholar

16 Tanaka, T.; Gokcen, N.A.; Morita, Z.I.: Z. Metallkd. 81 (1990) 49.Search in Google Scholar

17 Massalski, T.R.; Murray, J.L.; Bennet, L.H.; Baker, H.: Binary Alloy Phase Diagrams, ASM, Metals Park, Ohio (1986).Search in Google Scholar

18 Bruzzone, G.; Merlo, F.: J. Less-Common Metals 39 (1975) 1.10.1016/0022-5088(75)90212-XSearch in Google Scholar

19 Fornasini, M.L.; Merlo, F.: Acta Crystallogr. B 32 (1976) 1864.10.1107/S0567740876006547Search in Google Scholar

20 Closset, B.; Dugas, H.; Perkguleryuz, M.; Gruzleski, J.E.: Metall. Trans. A 17 (1986) 1250.10.1007/BF02665326Search in Google Scholar

21 Fornasini, M.L.: Acta Crystallogr. C 39 (1983) 943.10.1107/S0108270183006940Search in Google Scholar

22 Esin, Y.O.; Litovski, V.V.; Demin, S.E.; Petrushevski, M.S.: Russ. J. Phys. Chem. 59 (1985) 446.Search in Google Scholar

23 Jordan, A.S.: Metall. Trans. 1 (1970) 239.10.1007/BF02819267Search in Google Scholar

Received: 2002-04-23
Published Online: 2022-01-08

© 2002 Carl Hanser Verlag, München