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Experimental Investigation of Phase Equilibria in the Nb-Si-V Ternary System

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Abstract

In this study, three isothermal sections of the Nb-Si-V ternary system at 1100, 1200 and 1300 °C were experimentally established by means of back-scattered electron, electron probe microanalysis and x-ray diffraction. The isothermal sections at 1100, 1200 and 1300 °C have similar phase relationships, in which five three-phase regions have been determined. In all three isothermal sections, the (Nb,V)2Si compound has been found for the first time, and the compounds NbSi2 and VSi2 form a complete solid solution phase (Nb,V)Si2.

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Acknowledgment

This work is supported by the National Natural Science Foundation of China (Grant Nos. 51471138, 51571168), the Ministry of Science and Technology of China (Grant No. 2014DFA53040). The support from the China Aviation Industry Group is also acknowledged.

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Authors and Affiliations

  1. Department of Materials Science and Engineering, College of Materials, Xiamen University, Xiamen, 361005, People’s Republic of China

    J. Li, S. Y. Yang, Z. Shi, C. P. Wang & X. J. Liu

  2. Fujian Provincial Key Laboratory of Materials Genome, Xiamen University, Xiamen, 361005, People’s Republic of China

    J. Li, S. Y. Yang, Z. Shi, C. P. Wang & X. J. Liu

  3. Science and Technology on Advanced High Temperature Structural Materials Laboratory, Beijing Institute of Aeronautical Materials, Beijing, 100095, People’s Republic of China

    Y. W. Kang

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  1. J. Li
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Correspondence to X. J. Liu.

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Li, J., Yang, S.Y., Shi, Z. et al. Experimental Investigation of Phase Equilibria in the Nb-Si-V Ternary System. J. Phase Equilib. Diffus. 38, 110–120 (2017). https://doi.org/10.1007/s11669-017-0517-z

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  • DOI: https://doi.org/10.1007/s11669-017-0517-z

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