| AlF3-(Li,Na)F-(Al2O3-Y2O3)熔盐体系物理化学性质研究 |
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| 引用本文： | 郝婷婷,王旭,翟玉春,常云龙.AlF3-(Li,Na)F-(Al2O3-Y2O3)熔盐体系物理化学性质研究[J].有色金属科学与工程,2022,13(2):10-15. |
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| 作者姓名： | 郝婷婷 王旭 翟玉春 常云龙 |
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| 作者单位： | 1.沈阳工业大学材料科学与工程学院，沈阳 110870 |
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| 基金项目： | 江西省教育厅科技项目;国家自然科学基金 |
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| 摘 要： | 为进一步优化电解制备Al-Cu-Y合金的热、动力学条件，对AlF3-(Li, Na)F-(Al2O3-Y2O3)熔盐体系的密度、黏度及电导率变化规律进行研究。分别采用阿基米德法、连续变化电导池常数法和旋转法测定AlF3-(Li, Na)F-(Al2O3-Y2O3)熔盐体系在温度为900~1 000 ℃范围内，n((Li, Na)F): n(AlF3)=2.5时的密度(ρ)、电导率(σ)、黏度(η)随温度和组分的变化规律，结果表明:在温度900~1 000 ℃范围内，AlF3-(Li, Na)F-(Al2O3-Y2O3)体系中Al2O3和Y2O3的含量一定，密度-温度、黏度-温度和电导率-温度之间均呈线性关系。在温度为950 ℃条件下，熔盐体系的密度随Al2O3含量的增加而线性减小，随Y2O3含量的增加而线性增加; 电导率随Y2O3或Al2O3含量的增加而线性减小; 体系的黏度则随Y2O3或Al2O3含量的增加而线性增加。
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| 关 键 词： | 熔盐 密度 黏度 电导率 旋转法 |
| 收稿时间： | 2021-11-28 |
Investigation of the physicochemical properties of AlF3-(Li,Na)F-(Al2O3-Y2O3) melt |
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| Affiliation: | 1.School of Materials Science and Engineering, Shenyang University of Technology, Shenyang 110870, China2.Faculty of Materials Metallurgy and Chemistry, Jiangxi University of Science and Technology, Ganzhou 341000, Jiangxi, China3.School of Metallurgical Engineering, Northeastern University, Shenyang 110006, China |
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| Abstract: | To optimize the thermal and kinetic conditions for the preparation of Al-Cu-Y alloys by electrolysis, the variation law of density, viscosity and conductivity of AlF3-(Li, Na)F-(Al2O3-Y2O3) molten salt systems was studied. The change law of density, conductivity and viscosity with different oxide concentration contents in this system was measured by the Archimedes method, continuously varying conductivity cell constant method and rotation method when (Li, Na)F: AlF3 (molar ratio)=2.5 in the temperature range of 900-1 000 ℃. The results showed that the density, viscosity and conductivity were linear with the fixed composition of Al2O3 and Y2O3 in such a temperature range. At a constant temperature of 950 ℃, the density of the molten salt system decreased linearly with increasing Al2O3 content and increased linearly with increasing Y2O3 content; with increasing oxide content (Al2O3 or Y2O3), the conductivity of the molten salt system decreased linearly, while the viscosity of the system increased linearly. |
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