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Investigation on Reaction Interface between the Aluminum and K2ZrF6 by Freezing the Molten Salt Reaction

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Acta Metallurgica Sinica (English Letters) Aims and scope

Abstract

A reaction interface between the aluminum and K2ZrF6 during molten salt reaction process was frozen by quenching the mold in water, and the interface structure was analyzed to determine the formation process of Al3Zr. Results show that a clear conical interface existed between the K2ZrF6 and aluminum. A zirconium accumulation layer with the thickness of about 2–3 μm was formed at the aluminum side of the interface. Many initially formed Al3Zr particles (with the size of 0.4–16 μm) distributed in this layer, most of which located at the interface. The morphology of Al3Zr particles is closely related with their size. For the size of 0.4–1 μm, the Al3Zr appeared as globular and ellipsoid shapes. When it grew to the size of 1–2 and 2–16 μm, it exhibited the rule cube shape, and rule cuboids shape, respectively.

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Acknowledgements

The Project Supported by the National Natural Science Foundation of China (Nos. 51204053, 51374067 & 51674078), Central University Basic R & D Operating Expenses (Nos. N130409005, N130709001 & N130209001).

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Authors and Affiliations

  1. Key Laboratory of Electromagnetic Processing of Materials, Ministry of Education, Northeastern University, Shenyang, 110819, China

    Qing-Feng Zhu, Fei Li, Lei Li, Wen-Jing Wang, Gao-Song Wang & Jian-Zhong Cui

  2. School of Materials Science and Engineering, Northeastern University, Shenyang, 110819, China

    Qing-Feng Zhu, Fei Li, Lei Li, Wen-Jing Wang, Gao-Song Wang & Jian-Zhong Cui

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  1. Qing-Feng Zhu
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  2. Fei Li
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  3. Lei Li
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  6. Jian-Zhong Cui
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Correspondence to Qing-Feng Zhu.

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Zhu, QF., Li, F., Li, L. et al. Investigation on Reaction Interface between the Aluminum and K2ZrF6 by Freezing the Molten Salt Reaction. Acta Metall. Sin. (Engl. Lett.) 30, 433–437 (2017). https://doi.org/10.1007/s40195-016-0508-9

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  • DOI: https://doi.org/10.1007/s40195-016-0508-9

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