Morphology and growth mechanism of VLS grown Zn crystals from Zn–Bi monotectic droplets

The morphology of the VLS grown Zn crystals from Zn-Bi monotectic droplets with increasing growth temperature changes from pencil-shaped to icosahedron through a disk-like form which is not observed in eutectic systems. These morphological changes were explained by both the surface tension of the li...

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Bibliographic Details
Published in:Journal of crystal growth 1987-08, Vol.84 (2), p.185-190
Main Authors: Yumoto, Hisami, Kaneko, Tsutomu, Hasiguti, Ryukiti R., Watanabe, Tsuneo
Format: Article
Language:English
Subjects:
Cross-disciplinary physics: materials science
rheology
Exact sciences and technology
Materials science
Metals, semimetals and alloys
Methods of crystal growth
physics of crystal growth
Physics
Specific materials
Theory and models of crystal growth
physics of crystal growth, crystal morphology and orientation
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Summary:The morphology of the VLS grown Zn crystals from Zn-Bi monotectic droplets with increasing growth temperature changes from pencil-shaped to icosahedron through a disk-like form which is not observed in eutectic systems. These morphological changes were explained by both the surface tension of the liquid and the “faceted to non-faceted” transition of the interface between the liquid and solid. It was also found in this monotectic system that the surface tension and this transition temperature were determined mainly by the growth temperature and by the concentration of the liquid, respectively. This transition temperature agrees with the “roughening transition temperature” of the present authors' model reported previously [1].
ISSN:0022-0248
1873-5002
DOI:10.1016/0022-0248(87)90128-X