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Jiangxi Nonferrous Metals Society
ISSN：1674-9669
CN：36-1311/TF
CODEN YJKYA9
Volume 14 Issue 6
Dec.  2023
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ZHANG Yongjian, CAI Boqing, WANG Xu, WANG Ruixiang, SHI Zhongning. Investigation of the surface tension of LiF-CaF2-Yb2O3 molten salt and Ni-Yb alloy[J]. Nonferrous Metals Science and Engineering, 2023, 14(6): 802-807. DOI: 10.13264/j.cnki.ysjskx.2023.06.007
Citation: ZHANG Yongjian, CAI Boqing, WANG Xu, WANG Ruixiang, SHI Zhongning. Investigation of the surface tension of LiF-CaF2-Yb2O3 molten salt and Ni-Yb alloy[J]. Nonferrous Metals Science and Engineering, 2023, 14(6): 802-807. DOI: 10.13264/j.cnki.ysjskx.2023.06.007
shu

Investigation of the surface tension of LiF-CaF2-Yb2O3 molten salt and Ni-Yb alloy

  • 1.

    Faculty of Materials, Metallurgy and Chemistry, Jiangxi University of Science and Technology, Ganzhou 341000, Jiangxi, China

  • 2.

    School of Metallurgical Engineering, Northeastern University, Shenyang 110006, China

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  • Received Date: October 17, 2022
  • Revised Date: January 05, 2023
  • Available Online: December 28, 2023
    Graphical Abstract
    • Abstract
  • The surface tension of the LiF-CaF2-Yb2O3 molten salt system is one of the key physical and chemical properties to optimize the preparation of Ni-Yb alloys by electrolysis. In this paper, the surface tension of the LiF-CaF2-Yb2O3 system was measured by the pulling cylinder method in the temperature range of 1 173 K to 1 523 K, its changing laws were analyzed, and the surface tension of the Ni-Yb alloy was estimated. The results showed that the surface tension of the LiF-CaF2 system decreased linearly with the increase of temperature in the range of 1 173 K to 1 573 K. The surface tension of the LiF-CaF2-Yb2O3 system also decreased with the increase of temperature in the range of 1 173 K to 1 573 K, while the surface tension of the LiF-CaF2-Yb2O3 system increased at first and then decreased with the increase of Yb2O3 concentration in the range of 1% to 4% (mass fraction). The surface tension of the LiF-CaF2-Yb2O3 system reached the highest value when the content of Yb2O3 was about 1% (mass fraction) in the LiF-CaF2 system. The surface tension of the liquid Yb-Ni alloy changed little with different components and temperatures. When the content of Yb is in the range of 0 to 0.10% (mole fraction), the surface tension of the Ni-Yb alloy is higher, so liquid Ni-Yb alloy easily separates from LiF-YbF3-Yb2O3 molten salt.
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    • References (20)
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