Morphology and Stoichiometry of Quasicrystal in Rapidly Solidified Al-Mn Alloy

Miao Bohe; Yang Guobin; Li Wantong; Li Xiaofeng; Zhou Yuqing

doi:10.13374/j.issn1001-053x.1986.04.022

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Miao Bohe, Yang Guobin, Li Wantong, Li Xiaofeng, Zhou Yuqing. Morphology and Stoichiometry of Quasicrystal in Rapidly Solidified Al-Mn Alloy[J]. Chinese Journal of Engineering, 1986, 8(4): 13-17. doi: 10.13374/j.issn1001-053x.1986.04.022

Citation:

Miao Bohe, Yang Guobin, Li Wantong, Li Xiaofeng, Zhou Yuqing. Morphology and Stoichiometry of Quasicrystal in Rapidly Solidified Al-Mn Alloy[J]. Chinese Journal of Engineering, 1986, 8(4): 13-17. doi: 10.13374/j.issn1001-053x.1986.04.022

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Morphology and Stoichiometry of Quasicrystal in Rapidly Solidified Al-Mn Alloy

doi: 10.13374/j.issn1001-053x.1986.04.022

Received Date: 1986-04-21
Available Online: 2021-11-15

Abstract

Abstract

Chrysanthemum-like morphology of quasicrystal with long-range orientational order and no translational symmetry in rapidly solidified Al-12 at%Mn and Al-10 at% Mn-2 at%Fe alloys, is observed by the Hitachi-800 TEM. This result shows that the growth of quasicrystal exhibits a mechanism in between those of noncrystalline and crystalline.The Hitachi-800 EDXS has shown that the stoichiometry of the Al-Mn quasicrystal is very close to Al₄Mn₆More-over, formation of quasicrystals in Al-Mn alloy is promorted by adding Feto the alloy.
- quasicrystal,
- stoichiometry,
- morphology,
- EDXS,
- TEM,
- SAD,
- AAS