Journal
JOM
Volume 69, Issue 12, Pages 2644-2647Publisher
SPRINGER
DOI: 10.1007/s11837-017-2548-7
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Funding
- Fundamental Research Funds for the Central Universities [N162503001, N150204010]
- National Natural Science Foundation of China [51434005, 51529401]
- NEU Postdoctoral Foundation [20170307]
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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 980A degrees C.
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