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Article

A Crystallographic Study on the Growth of Partially Faceted MnSn2 Phase during Solidification Process

1
Key Laboratory of Electromagnetic Processing of Materials, Ministry of Education, Northeastern University, Shenyang 110819, China
2
School of Materials Science and Engineering, Northeastern University, Shenyang 110819, China
3
CNRS, Arts et Métiers ParisTech, LEM3, Université de Lorraine, F-57000 Metz, France
4
Laboratory of Excellence on Design of Alloy Metals for low-mAss Structures (DAMAS), Université de Lorraine, 57073 Metz, France
*
Author to whom correspondence should be addressed.
Crystals 2018, 8(10), 380; https://doi.org/10.3390/cryst8100380
Received: 11 September 2018 / Revised: 25 September 2018 / Accepted: 27 September 2018 / Published: 29 September 2018
(This article belongs to the Section Crystalline Materials)
The growth of MnSn2 phase during the solidification process of Sn-Mn alloy was crystallographically investigated. The results show that the non-faced spherical caps of the MnSn2 crystals follow the continuous growth mechanism to grow rapidly along the <001> direction, while the side surfaces the two-dimensional nucleation mechanism to form the low index {100} and {110} facets. An interface structure analysis indicates that the atom planes within the {100} interplanar spacing period (IPSP) has a lower average reticular density than those within the {011} IPSP. This leads to the faster growth rates and thus the shortening and disappearance of the {100} side facets. As a consequence, the partially faceted (i.e., non-faceted spherical caps and faceted side surfaces) MnSn2 crystals follow an octagonal-base/spherical-cap geometric model (few crystals possess square bases) in three dimensions. View Full-Text
Keywords: MnSn2 phase; solidification; crystal growth; crystallography MnSn2 phase; solidification; crystal growth; crystallography
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MDPI and ACS Style

Li, L.; Bi, Y.; Ban, C.; Zhang, H.; Liu, T.; Wang, X.; Esling, C.; Cui, J. A Crystallographic Study on the Growth of Partially Faceted MnSn2 Phase during Solidification Process. Crystals 2018, 8, 380. https://doi.org/10.3390/cryst8100380

AMA Style

Li L, Bi Y, Ban C, Zhang H, Liu T, Wang X, Esling C, Cui J. A Crystallographic Study on the Growth of Partially Faceted MnSn2 Phase during Solidification Process. Crystals. 2018; 8(10):380. https://doi.org/10.3390/cryst8100380

Chicago/Turabian Style

Li, Lei, Yuantong Bi, Chunyan Ban, Haitao Zhang, Tie Liu, Xiangjie Wang, Claude Esling, and Jianzhong Cui. 2018. "A Crystallographic Study on the Growth of Partially Faceted MnSn2 Phase during Solidification Process" Crystals 8, no. 10: 380. https://doi.org/10.3390/cryst8100380

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