Characterization of the Icosahedral Quasicrystal in the Rapidly Solidified Mg-Al-Zn Ternary Alloy |
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| Journal | Applied Mechanics and Materials (Volumes 71 - 78) |
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| Volume | Frontiers of Green Building, Materials and Civil Engineering |
| Edited by | Dongye Sun, Wen-Pei Sung and Ran Chen |
| Pages | 822-825 |
| DOI | 10.4028/www.scientific.net/AMM.71-78.822 |
| Citation | Man Zhu et al., 2011, Applied Mechanics and Materials, 71-78, 822 |
| Online since | July, 2011 |
| Authors | Man Zhu, Zeng Yun Jian, Cui Xia Liu, Gen Cang Yang, Yao He Zhou |
| Keywords | Icosahedral Quasicrystal, Mg-Al-Zn, Pentagonal Dodecahedron, Rapid Solidification |
| Abstract | By means of XRD, SEM, FE-SEM, and TEM, the microstructures and growth morphology features of icosahedral quasicrystal for rapidly solidified Mg-Al-Zn system were investigated. It was found that, single icosahedral quasicrystal can be obtained in the Mg-Al-Zn alloys. The icosahedral quasicrystal reveals three typical morphologies: well developed dendrites, coral-like, and petal-like, and its compositions are in a wide range composition with 42.87-48.89 at.%Mg, 13.78-17.03 at.%Al, and 34.22-40.60 at.%Zn. Pentagonal dodecahedron with icosahedral symmetries is seen, and certain steps in pentagonal faces suggest that the planar growth occurs on the pentagonal faces. |
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