Thermodynamic modeling of the Nb-rich corner in the Nb-Si-Sn system

Zhiping Sun; Xiping Guo; Chuan Zhang

doi:10.1016/j.calphad.2011.12.002

Thermodynamic modeling of the Nb-rich corner in the Nb-Si-Sn system

Zhiping Sun
, Xiping Guo
, Chuan Zhang

School of Materials Sience and Engineering

Northwestern Polytechnical University Xian
CompuTherm, LLC

Research output: Contribution to journal › Article › peer-review

17 Scopus citations

Abstract

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.

Original language	English
Pages (from-to)	82-88
Number of pages	7
Journal	Calphad: Computer Coupling of Phase Diagrams and Thermochemistry
Volume	36
DOIs	https://doi.org/10.1016/j.calphad.2011.12.002
State	Published - Mar 2012

Keywords

NbSiSn
Phase diagram
SiSn
Thermodynamic modeling

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10.1016/j.calphad.2011.12.002

Cite this

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title = "Thermodynamic modeling of the Nb-rich corner in the Nb-Si-Sn system",

abstract = "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.",

keywords = "NbSiSn, Phase diagram, SiSn, Thermodynamic modeling",

author = "Zhiping Sun and Xiping Guo and Chuan Zhang",

year = "2012",

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doi = "10.1016/j.calphad.2011.12.002",

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journal = "Calphad: Computer Coupling of Phase Diagrams and Thermochemistry",

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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 -

Thermodynamic modeling of the Nb-rich corner in the Nb-Si-Sn system

Abstract

Keywords

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