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Phase Equilibria of the Er-Si-V Ternary System at 1173 K

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Abstract

The phase equilibria of the Er-Si-V ternary system at 1173 K has been investigated mainly by means of powder X-ray diffraction (XRD), scanning electron microscopy (SEM) and differential thermal analysis (DTA). 8 binary compounds, namely Er5Si3, Er5Si4, ErSi, Er3Si5, Si2V, Si5V6, Si3V5 and SiV3 have been confirmed. No binary compound was found in the Er-V binary system, and no ternary compound has been found in this isothermal section. The maximum solid solubility of Si in V is about 4 at.%. Er3Si5 has a narrow homogeneity range (from 61 to 62.5 at.% Si) while the homogeneity range of SiV3 is from 22 to 25 at.% Si. No remarkable solid solubility of the elements in any of the other phases has been observed. The isothermal section consists of 11 single-phase regions, 19 two-phase regions, and 9 three-phase regions.

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Acknowledgments

This research work is jointly supported by the National Natural Science Foundation of China (51161002), the Guangxi Science and Technology Development Project (1114003-1), and the Opening Foundation of State Key Laboratory of Powder Metallurgy (2011).

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Authors and Affiliations

  1. Laboratory of Nonferrous Metal Materials and New Processing Technology, Ministry of Education, Guangxi University, Nanning, 530004, Guangxi, People’s Republic of China

    Wenchao Yang, Yongzhong Zhan & Wenping Jiang

  2. Institute of Light Industrial and Foodstuff Engineering, Guangxi University, Nanning, 530004, Guangxi, People’s Republic of China

    Lijun Wang

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  1. Wenchao Yang
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Correspondence to Yongzhong Zhan.

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Yang, W., Zhan, Y., Wang, L. et al. Phase Equilibria of the Er-Si-V Ternary System at 1173 K. J. Phase Equilib. Diffus. 33, 288–292 (2012). https://doi.org/10.1007/s11669-012-0045-9

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  • DOI: https://doi.org/10.1007/s11669-012-0045-9

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