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The 600 °C Isothermal Section of the Zn-Al-La Ternary System

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Abstract

The 600 °C isothermal section of the Zn-Al-La ternary system was experimentally determined using scanning electron microscopy/energy dispersive spectroscopy, X-ray diffraction and equilibrated alloy method. The results indicate that nine three-phase regions have been identified in the Zn-Al-La ternary system at 600 °C. No new ternary compound was found in the system. La-Zn and La-Al compounds can dissolve a certain amount of Al and Zn, respectively. The solubility of Al in LaZn, LaZn5 and La3Zn22 phases is 18.6, 2.6 and 9.0 at.%, respectively, and the solubility of Al in La2Zn17 and LaZn11 phases is 17.1 and 6.3 at.%, respectively. The solubility of Zn in Al4La5, AlLa, Al2La and Al3La phases is 7.8, 7.8, 25.3 and 15.2 at.%, respectively. The ternary compound Zn2Al2La has a larger composition range, and its chemical composition can be roughly expressed as La (ZnxAl1−x)4 (0.2875 ≤ x ≤ 0.6875).

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Acknowledgments

This investigation is supported by National Natural Science Foundation of China (Nos. 51671037 and 51471037), A Project Funded by the Priority Academic Program Development of Jiangsu Higher Education Institutions(PAPD).

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Authors and Affiliations

  1. Jiangsu Key Laboratory of Material Surface Science and Technology, Changzhou University, Jiangsu, 213164, People’s Republic of China

    Hao** Peng, Jianhua Wang, Ya Liu, ** Su

  2. Jiangsu Key Laboratory of Oil & Gas Storage and Transportation Technology, Changzhou University, Jiangsu, 213164, People’s Republic of China

    Hao** Peng & Shouwu Xu

  3. Jiangsu Collaborative Innovation Center of Photovolatic Science and Engineering, Changzhou University, Jiangsu, 213164, People’s Republic of China

    Hao** Peng, Jianhua Wang, Ya Liu & Xu** Su

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Peng, H., Xu, S., Wang, J. et al. The 600 °C Isothermal Section of the Zn-Al-La Ternary System. J. Phase Equilib. Diffus. 39, 377–386 (2018). https://doi.org/10.1007/s11669-018-0645-0

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