Abstract
The 450 °C isothermal section of the Si-V-Zn ternary phase diagram was experimentally determined using x-ray diffraction and scanning electron microscopy coupled with energy dispersive spectroscopy. All the six three-phase regions were well determined. No ternary compound was found. Si5V6 was not detected at 450 °C. All the Si-V compounds can equilibrate with the liquid-Zn phase. And the V-Zn compounds, VZn3 and V4Zn5, can equilibrate with SiV3. In addition, the maximum solubilities of Zn in Si2V, Si3V5 and SiV3 were 1.0, 1.7 and 4.8 at.%, respectively, while Si had no detectable solubility in Zn-V compounds. Furthermore, thermodynamic extrapolation of the Si-V-Zn system was carried out using only the binary interaction parameters. This showed good agreement with the experimentally determined three-phase fields.
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The authors gratefully acknowledge the financial support from National Natural Science Foundation of China (Nos. 51171031 and 51201023), and the Priority Academic Program Development of Jiangsu Higher Education Institutions.
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Wu, C., Yang, Q., Peng, H. et al. Experimental Investigation and Thermodynamic Extrapolation of the Si-V-Zn System. J. Phase Equilib. Diffus. 36, 632–637 (2015). https://doi.org/10.1007/s11669-015-0420-4
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DOI: https://doi.org/10.1007/s11669-015-0420-4