Investigation on Reaction Interface between the Aluminum and K2ZrF6 by Freezing the Molten Salt Reaction
来源期刊：Acta Metallurgica Sinica2017年第5期
论文作者：Qing-Feng Zhu Fei Li Lei Li Wen-Jing Wang Gao-Song Wang Jian-Zhong Cui
文章页码：433 - 437
摘 要：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 lm was formed at the aluminum side of the interface. Many initially formed Al3Zr particles（with the size of 0.4–16 lm） 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 lm, the Al3Zr appeared as globular and ellipsoid shapes. When it grew to the size of 1–2 and 2–16 lm, it exhibited the rule cube shape, and rule cuboids shape, respectively.
Qing-Feng Zhu1,2，Fei Li1,2，Lei Li1,2，Wen-Jing Wang1,2，Gao-Song Wang1,2，Jian-Zhong Cui1,2
1. Key Laboratory of Electromagnetic Processing of Materials,Ministry of Education, Northeastern University2. School of Materials Science and Engineering, Northeastern University
摘 要：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 lm was formed at the aluminum side of the interface. Many initially formed Al3Zr particles（with the size of 0.4–16 lm） 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 lm, the Al3Zr appeared as globular and ellipsoid shapes. When it grew to the size of 1–2 and 2–16 lm, it exhibited the rule cube shape, and rule cuboids shape, respectively.
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