View More View Less
  • 1 Laboratory of Thermodynamics and Energy (L.T.E.), Faculty of Science, University Ibn Zohr, B.P. 8106, Agadir, Morocco
Restricted access

Abstract

The thermodynamic modeling of the Ruthenium–Yttrium binary system was carried out with the help of CALPHAD (CALculation of PHAse Diagram) method. Ru2Y, Ru2Y3, Ru25Y44, Ru2Y5, and RuY3 have been treated as stoichiometric compounds while a solution model has been used for the description of the liquid, BCC_A2, and HCP_A3 phases. The calculations based on the thermodynamic modeling are in good agreement with the phase diagram data and experimental thermodynamic values available in the literature.

  • 1. Idbenali, M, Servant, C, Selhaoui, N, Bouirden, L. Thermodynamic assessment of the Ru–Zr binary system. J Phase Equilib 2007 26:243249.

    • Search Google Scholar
    • Export Citation
  • 2. Kaufman, L, Bernstein, H Computer calculations of phase diagrams 1970 Academic Press New York, NY.

  • 3. Savitsky, EM, Polyakova, VP, Roshan, NR. The Ru–Y phase diagram. Russ Metall (Engl. Transl.) 1972 5:9798.

  • 4. Sharifrazi, P, Mohanty, RC, Raman, A. Intermediate phases in some rare earth-ruthenium systems. Z Metallkd 1984 75:801805.

  • 5. Fonasini, ML, Mugnoli, A, Paenzona, A. Crystal structure of Y44Ru25. J Less-Common Met 1989 154:149156 .

  • 6. Massalski, TB, Okamoto, H, Subramanian, PR, Kacprzak, L Binary alloy phase diagrams 2 ASM Materials Park, OH 1990.

  • 7. Selhaoui, N, Kleppa, OJ. Standard enthalpies of formation of yttrium alloys, Y–Me (Me = Ru, Rh, Pd, Os, Ir, Pt), by high-temperature calorimetry. J Chim Phys 1993 90:435443.

    • Search Google Scholar
    • Export Citation
  • 8. Selhaoui, N, Kleppa, OJ. Standard enthalpies of formation of scandium alloys, Sc+Me (Me = Fe, Co, Ni, Ru, Rh, Pd, Ir, Pt), by high-temperature calorimetry. J Alloys Compd 1993 191:145149 .

    • Crossref
    • Search Google Scholar
    • Export Citation
  • 9. Selhaoui, N, Charles, J, Kleppa, OJ, Bouirden, L, Gachon, JC. The Ruthenuim-Yttrium system: an experimental calorimetric study with a phase diagram optimization. J Solid State Chem 1998 138:302306 .

    • Crossref
    • Search Google Scholar
    • Export Citation
  • 10. Charles, J, Gachon, JC, Hertz, J. Different ways to find the thermodynamic functions describing the formation of binary alloys. Part 2. Numerical phase diagram description coupled with experimental measurements. CALPHAD 1985 9:3542 .

    • Crossref
    • Search Google Scholar
    • Export Citation
  • 11. Charles, J, Notin, M, Rahmane, M, Hertz, J. NANCYUN: a laboratory tool for calculation of binary systems. J Phase Equilib 1992 13:497506 .

  • 12. Sundman, B, Jansson, B, Andersson, JO. The Thermo-Calc databank system. CALPHAD 1985 9:153190 .

  • 13. Dinsdale, AT. SGTE data for pure elements. CALPHAD. 1991;15:317425 .

  • 14. Redlich, O, Kister, A. Algebraic representation of thermodynamic properties and the classification of solutions. Ind Eng Chem 1948 40:345348 .

  • 15. Chen, SL, Daniel, S, Zhang, F, Chang, YA, Oates, WA, Schmid-Fetzer, R. On the calculation of multicomponent stable phase diagrams. J Phase Equilib 2001 22:373378 .

    • Crossref
    • Search Google Scholar
    • Export Citation
  • 16. Arroyave, R, Liu, ZK. Thermodynamic modelling of the Zn–Zr system. CALPHAD 2006 30:113 .

  • 17. Kumar, KC, Wollants, P. Some guidelines for thermodynamic optimisation of phase diagrams. J Alloys Compd 2001 320:189198 .