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Sabine Knott and Adolf Mikula Institute of Inorganic Chemistry-Materials Chemistry

A brief summary of thermodynamic properties of various ternary systems investigated by EMF and Calorimetric method. Sabine Knott and Adolf Mikula Institute of Inorganic Chemistry-Materials Chemistry Währingerstr. 42, A-1090 Vienna, Austria. Investigated Systems. AlSnZn AgSnZn CuSnZn

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Sabine Knott and Adolf Mikula Institute of Inorganic Chemistry-Materials Chemistry

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  1. A brief summary of thermodynamic properties of various ternary systems investigated by EMF and Calorimetric method Sabine Knott and Adolf Mikula Institute of Inorganic Chemistry-Materials Chemistry Währingerstr. 42, A-1090 Vienna, Austria

  2. Investigated Systems AlSnZn AgSnZn CuSnZn BiInZn EMF and Calorimetry BiSn AgBiSn CuInZn PdSnZn EMF CuIn BiInSn CuInSn AgAuSn AuCuSn AgAlSn Calorimetry 14 binary and ternary systems

  3. EMF Measurements Partial Quantities __ ΔG = -zFE a= exp (ΔG/RT) Gibbs Helmholtz Equation __ ΔH = -z(∂E/∂T)F-zFE __ ΔS = z(∂E/∂T)F

  4. EMF Apparatus Electrodes: Mo or W wire Valve for evacuation Quartz container sample Liquid electrolyte LiCl/KCl/XCly (X= Al, Zn, Sn), (y=2,3)

  5. EMF Measurements Integral Quantities Gibbs-Duhem Equation x ΔGEM=(1-xx)[ΔGEM,x=0+∫adxx]y/z 0 __ ΔGEx = RT lngx a = lngx/ (1-xx)2

  6. Setaram Microcalorimeter 200-1000°C, automatic sample device (max. 30 drops/measurement) controller/data aquisition with LabView, evaluation with HiQ Calibration with NIST-sapphire Drop Calorimetry

  7. Calorimetry HSignal = ni. (Hsample,FT-Hsample,DT) + HReaction __ ΔHi = (HSignal/ni) – (Hsample,FT-Hsample,DT) ΔHMIX =Hbin + ΣHReaction /(n+Σni)

  8. Redlich Kister Muggianu Polynom Lνi,jbinary interaction parameter M ternary interaction parameter Isoenthalpy lines of the ternary Cu-In-Sn system at 1073 K

  9. Pd─Sn─Zn

  10. Bi─In─Zn Calorimetry, 500°C EMF, 600°C

  11. Bi─In─Zn Y Djaballah, L Bennour, F Bouharkat and A Belgacem-Bouzida Modelling Simul. Mater. Sci. Eng. 13 (2005) 361–369 Enthalpy of mixing measured by EMF and Calorimetry

  12. BiInZn EMF measurement Calorimetric measurement

  13. Bi─In─Zn Y Djaballah, L Bennour, F Bouharkat and A Belgacem-Bouzida Modelling Simul. Mater. Sci. Eng. 13 (2005) 361–369

  14. Ternary AgAuSn System • Verschiedene Modelle: • Extrapolationsmodelle nach Toop, Muggianu und Kohler • Chou Modell Dragana Živković, Dragan Manasijević, Živan Živković, J. of the University of Chemical Technology and Metallurgy, (2004) 39(1), 63-76 Z.Li, M.Dallegri, S.Knott, ccepted for publication in J. of Alloys and Compounds

  15. Ag-Bi-Sn vertical cross section Ag:Bi = 1:1 Calcs based on [01Oht] Calcs based on [94Kat] Δ-heating curve -cooling curve

  16. Cu-In 1073K,1373K 973K

  17. CuInSn Phase Diagram at different temperatures Liu et al., J. Electronic Materials, 30(9), 2001, 1093 Experimental Procedure: Calorimetric Measurements at 1073 K and 973 K

  18. Comparison Cu-In-Sn Kalorimetrie vs. Knudsen A. Popovic, L. Bencze, International Journal of Mass Spectrometry 255 (2006) 41–49

  19. Wetting angles Systems: CuInSn, 5 at.%Cu AgCuSn 17 different alloys Copper and Nickel substrate Collophonium flux

  20. Acknowledgements • Dr. Zuoan Li • FWF P16491–N11 • FWF P19469–N19 • COST 531

  21. Thank you for your attention

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