Experimental Study of Au-Pt-Sn Phase Equilibria and Thermodynamic Assessment of the Au-Pt and Au-Pt-Sn Systems

The Calphad method has been employed to generate a consistent thermodynamic description of the Au-Pt-Sn system, including a thermodynamic evaluation of the Au-Pt system, incorporating all phase equilibria and thermodynamic data. Special attention has been given to assign reasonable values to the par...

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Bibliographic Details
Published in:Journal of electronic materials 2008-03, Vol.37 (3), p.264-278
Main Authors: Grolier, Vincent, Schmid-Fetzer, Rainer
Format: Article
Language:English
Subjects:
Applied sciences
Characterization and Evaluation of Materials
Chemistry and Materials Science
Cross-disciplinary physics: materials science
rheology
Electronics
Electronics and Microelectronics
Exact sciences and technology
Experiments
Gold
Instrumentation
Materials
Materials Science
Optical and Electronic Materials
Optimization
Phase diagrams and microstructures developed by solidification and solid-solid phase transformations
Phase diagrams of metals and alloys
Physics
Platinum
Scanning electron microscopy
Solid State Physics
Thermodynamics
Tin
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Description
Summary:The Calphad method has been employed to generate a consistent thermodynamic description of the Au-Pt-Sn system, including a thermodynamic evaluation of the Au-Pt system, incorporating all phase equilibria and thermodynamic data. Special attention has been given to assign reasonable values to the parameters in view of the rather wide range of freedom for optimization. Our own experimental analyses of the Au-Pt-Sn system were carried out with differential thermal analysis and microstructural analysis using scanning electron microscopy with energy-dispersive X-ray microanalysis. The proposed thermodynamic descriptions are found to describe properly the binary Au-Pt and ternary Au-Pt-Sn phase equilibria.
ISSN:0361-5235
1543-186X
DOI:10.1007/s11664-007-0352-9