Preparation of Aluminum-Zirconium Master Alloy by Aluminothermic Reduction in Cryolite Melt

被引：0
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作者：
Fengguo Liu
Chenliang Ding
Wenju Tao
Xianwei Hu
Bingliang Gao
Zhongning Shi
Zhaowen Wang
机构：
[1] Northeastern University,School of Metallurgy
[2] Key Laboratory for Ecological Utilization of Multimetallic Mineral (Ministry of Education),undefined
来源：
JOM | 2017年 / 69卷
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摘要：
Al-Zr master alloy was prepared by aluminothermic reduction in cryolite melt without alumina impurity. The Al-Zr master alloy was characterized by x-ray diffraction, scanning electron microscopy, and energy-dispersive spectroscopy. The composition of the master alloy was analyzed by inductively coupled plasma optical emission spectrometry. The results indicated that Al-Zr master alloy with high purity could be obtained when byproduct Al2O3 was dissolved in the cryolite melt. The Al-Zr alloy was embedded in the Al matrix in the form of Al3Zr phase with long rod or tetragonal morphology due to temperature variation. Finally, we obtained Al-Zr alloy with 7 wt.% Zr by aluminothermic reduction for 90 min in cryolite melt at 980°C.
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页码：2644 / 2647
页数：3
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