TY - JOUR
T1 - Experimental Determination and Thermodynamic Modeling of the Sn-Rich Corner of the Ternary Ni-Pd-Sn Phase Diagram at 250°C
AU - Rahman, Md Arifur
AU - Ho, Cheng En
AU - Gierlotka, Wojciech
AU - Kuo, Jui Chao
N1 - Funding Information:
This study was supported by the Ministry of Science and Technology (R.O.C.) through Grant Nos. MOST103-2221-E-155-010, NSC103-2622-E-155-001, and NSC102-2221-E-259-034. The authors would also like to acknowledge Chung-Yuan Kao (National Taiwan University) and S. Y. Tsai (National Tsing Hua University) for their assistance with the EPMA analyses.
PY - 2014
Y1 - 2014
N2 - The Sn-rich portion of the phase diagram for the Ni-Pd-Sn ternary system was preliminarily obtained by interpolation of the three constituent binary systems using the Muggianu method. Based on this proposition, 23 Ni-Pd-Sn alloys were prepared and annealed at 250°C. The annealed alloys were analyzed by scanning electron microscopy, electron probe microanalysis, electron backscatter diffraction, and x-ray diffraction. All the binaries adjacent to the Sn-rich corner (i.e., PdSn4, PdSn3, PdSn2, and Ni3Sn4) were found to have remarkable ternary solubility. The experimental results presented herein, together with a thermodynamic interpolation of the ternary system based on the results from the binary systems, were used to calculate the ternary phase diagram using the calculation of phase diagrams (CALPHAD) method. A substitution model was used to describe the Gibbs free energies of the liquid and solid solution phases, and a sublattice model was used to describe intermetallic compounds. A consistent set of thermodynamic parameters was obtained, ultimately leading to a better fit between the calculated results and the experimental data for this system.
AB - The Sn-rich portion of the phase diagram for the Ni-Pd-Sn ternary system was preliminarily obtained by interpolation of the three constituent binary systems using the Muggianu method. Based on this proposition, 23 Ni-Pd-Sn alloys were prepared and annealed at 250°C. The annealed alloys were analyzed by scanning electron microscopy, electron probe microanalysis, electron backscatter diffraction, and x-ray diffraction. All the binaries adjacent to the Sn-rich corner (i.e., PdSn4, PdSn3, PdSn2, and Ni3Sn4) were found to have remarkable ternary solubility. The experimental results presented herein, together with a thermodynamic interpolation of the ternary system based on the results from the binary systems, were used to calculate the ternary phase diagram using the calculation of phase diagrams (CALPHAD) method. A substitution model was used to describe the Gibbs free energies of the liquid and solid solution phases, and a sublattice model was used to describe intermetallic compounds. A consistent set of thermodynamic parameters was obtained, ultimately leading to a better fit between the calculated results and the experimental data for this system.
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U2 - 10.1007/s11664-014-3330-z
DO - 10.1007/s11664-014-3330-z
M3 - Article
AN - SCOPUS:84920253201
VL - 43
SP - 4582
EP - 4593
JO - Journal of Electronic Materials
JF - Journal of Electronic Materials
SN - 0361-5235
IS - 12
ER -