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投稿时间：2020-07-30 修订日期：2020-08-04 录用日期：2020-08-10 网络发布日期：2020-10-31
投稿时间：2020-07-30 修订日期：2020-08-04 录用日期：2020-08-10 网络发布日期：2020-10-31
中文摘要: LiF-YF3-Y2O3体系的密度和表面张力直接影响熔盐电解法制备钇合金的整个过程，在1 273~1 373 K使用阿基米德法和脱离法测定不同配比LiF-YF3、LiF-YF3-Y2O3的密度和表面张力。结果表明，随着熔盐温度的升高，LiF-YF3的密度和表面张力呈线性降低，同时，随着熔盐中YF3含量的升高，其密度和表面张力随之增大。对于LiF-YF3-Y2O3（0~5%）体系，随着Y2O3质量百分含量的增加，熔盐的密度和表面张力会先逐渐增大，当Y2O3含量超过2%后，熔盐的密度和表面张力逐渐下降。最后通过拟合获得合理的经验公式，确定熔盐密度和表面张力的变化规律。
Abstract:Density and surface tension of LiF-YF3-Y2O3 system are important factors in electrochemical preparation of yttrium alloy. Density and surface tension of LiF-YF3 and LiF-YF3-Y2O3 molten salt were measured by Archimedes and Detachment method with different concentrations and temperature (1 173—1 373 K). The results show that density and surface tension of LiF-YF3 molten salt linear drops with increase of temperature, but rise with increase of YF3 concentration. Density and surface tension of LiF-YF3-Y2O3(0—5%) molten salt rise firstly with increase of mass content of Y2O3, and drop with increase of Y2O3 mass content when Y2O3 mass content exceeds 2%. The empirical equations of molten salts are obtained by fitting quadratic equation, and changeable rule of density and surface tension are determined.
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基金项目:内蒙古自治区基金项目（201802009）；白云鄂博稀土资源研究与综合利用国家重点实验室自主课题（2019Z2055，2020Z2132）
引用文本：
康佳,于兵,黄海涛,张全军,刘玉宝,闫奇操.LiF-YF3-Y2O3体系密度与表面张力的研究[J].有色金属（冶炼部分）,2020(11):89-94.
Kang Jia,Yu Bing,Hang Hai-tao,Zhang Quan-jun,Liu Yu-bao,Yan Qi-cao.Study on Density and Surface Tension of LiF-YF3-Y2O3 System[J].Nonferrous Metals (Extractive Metallurgy),2020(11):89-94.
康佳,于兵,黄海涛,张全军,刘玉宝,闫奇操.LiF-YF3-Y2O3体系密度与表面张力的研究[J].有色金属（冶炼部分）,2020(11):89-94.
Kang Jia,Yu Bing,Hang Hai-tao,Zhang Quan-jun,Liu Yu-bao,Yan Qi-cao.Study on Density and Surface Tension of LiF-YF3-Y2O3 System[J].Nonferrous Metals (Extractive Metallurgy),2020(11):89-94.
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