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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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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 BiInZn EMF and Calorimetry BiSn AgBiSn CuInZn PdSnZn EMF CuIn BiInSn CuInSn AgAuSn AuCuSn AgAlSn Calorimetry 14 binary and ternary systems
EMF Measurements Partial Quantities __ ΔG = -zFE a= exp (ΔG/RT) Gibbs Helmholtz Equation __ ΔH = -z(∂E/∂T)F-zFE __ ΔS = z(∂E/∂T)F
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)
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
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
Calorimetry HSignal = ni. (Hsample,FT-Hsample,DT) + HReaction __ ΔHi = (HSignal/ni) – (Hsample,FT-Hsample,DT) ΔHMIX =Hbin + ΣHReaction /(n+Σni)
Redlich Kister Muggianu Polynom Lνi,jbinary interaction parameter M ternary interaction parameter Isoenthalpy lines of the ternary Cu-In-Sn system at 1073 K
Bi─In─Zn Calorimetry, 500°C EMF, 600°C
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
BiInZn EMF measurement Calorimetric measurement
Bi─In─Zn Y Djaballah, L Bennour, F Bouharkat and A Belgacem-Bouzida Modelling Simul. Mater. Sci. Eng. 13 (2005) 361–369
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
Ag-Bi-Sn vertical cross section Ag:Bi = 1:1 Calcs based on [01Oht] Calcs based on [94Kat] Δ-heating curve -cooling curve
Cu-In 1073K,1373K 973K
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
Comparison Cu-In-Sn Kalorimetrie vs. Knudsen A. Popovic, L. Bencze, International Journal of Mass Spectrometry 255 (2006) 41–49
Wetting angles Systems: CuInSn, 5 at.%Cu AgCuSn 17 different alloys Copper and Nickel substrate Collophonium flux
Acknowledgements • Dr. Zuoan Li • FWF P16491–N11 • FWF P19469–N19 • COST 531