TY - JOUR
T1 - Thermodynamic modeling of the Nb-rich corner in the Nb-Si-Sn system
AU - Sun, Zhiping
AU - Guo, Xiping
AU - Zhang, Chuan
PY - 2012/3
Y1 - 2012/3
N2 - A thermodynamic description for the NbSiSn system has been developed on the basis of the constituent binaries and critically reviewed ternary experimental data. The published thermodynamic descriptions for the NbSi and NbSn binaries were directly used and that for the SiSn binary was remodeled in the present study. A two-sublattice model, (Nb,Si,Sn)3 (Nb, Si, Sn), was applied to the A15 phase considering its crystal structure and homogeneity range. The isothermal sections at 1600 °C, 1500 °C, 1200 °C and 900 °C, the liquidus projection and the solidification path of the alloy (Nb18Si5Sn) were calculated accordingly based on the currently obtained thermodynamic description and compared with the experimental results. Comparison between the calculated results and the experimental measurements shows that the present modeling can provide a satisfactory account of the experimental information for the Nb-rich corner of the NbSiSn ternary phase diagram.
AB - A thermodynamic description for the NbSiSn system has been developed on the basis of the constituent binaries and critically reviewed ternary experimental data. The published thermodynamic descriptions for the NbSi and NbSn binaries were directly used and that for the SiSn binary was remodeled in the present study. A two-sublattice model, (Nb,Si,Sn)3 (Nb, Si, Sn), was applied to the A15 phase considering its crystal structure and homogeneity range. The isothermal sections at 1600 °C, 1500 °C, 1200 °C and 900 °C, the liquidus projection and the solidification path of the alloy (Nb18Si5Sn) were calculated accordingly based on the currently obtained thermodynamic description and compared with the experimental results. Comparison between the calculated results and the experimental measurements shows that the present modeling can provide a satisfactory account of the experimental information for the Nb-rich corner of the NbSiSn ternary phase diagram.
KW - NbSiSn
KW - Phase diagram
KW - SiSn
KW - Thermodynamic modeling
UR - https://www.scopus.com/pages/publications/84855423810
U2 - 10.1016/j.calphad.2011.12.002
DO - 10.1016/j.calphad.2011.12.002
M3 - 文章
AN - SCOPUS:84855423810
SN - 0364-5916
VL - 36
SP - 82
EP - 88
JO - Calphad: Computer Coupling of Phase Diagrams and Thermochemistry
JF - Calphad: Computer Coupling of Phase Diagrams and Thermochemistry
ER -