Orientation relationship between the T structure and the icosahedral quasicrystal in the Zn-Mg-Al alloy system

Kei Nakayama, Junya Watanabe, Yasumasa Koyama

    研究成果: Conference contribution

    1 被引用数 (Scopus)

    抄録

    To understand the crystallographic relation between the Bergman-type icosahedral quasicrystal and its approximant-T structure, we have investigated the crystallographic features of prepared Zn-Mg-Al alloy samples, mainly by transmission electron microscopy. It was found that there existed three kinds of regions: that is, C14-Laves, approximant-T, and icosahedral-quasicrystal regions, in Zn-Mg-Al alloy samples with the composition of Zn-36at.%Mg-9at.%Al. Among these regions, in particular, we tried to determine an orientation relationship between neighboring icosahedral-quasicrystal and approximant-T regions. Based on the determined relationship, for instance, four threefold rotatory-inversion axes in the T structure were found to be parallel to four of ten threefold rotatory-inversion axes in the icosahedral quasicrystal. It was thus understood that the atomic arrangements of the Bergman-type icosahedral quasicrystal and its approximant-T structure are likely to resemble each other.

    本文言語English
    ホスト出版物のタイトルFrontiers in Materials Science, FMS 2015: Proceedings of the 2nd International Symposium on Frontiers in Materials Science
    出版社American Institute of Physics Inc.
    1763
    ISBN(電子版)9780735414211
    DOI
    出版ステータスPublished - 2016 8 26
    イベント2nd International Symposium on Frontiers in Materials Science, FMS 2015 - Tokyo, Japan
    継続期間: 2015 11 192015 11 21

    Other

    Other2nd International Symposium on Frontiers in Materials Science, FMS 2015
    CountryJapan
    CityTokyo
    Period15/11/1915/11/21

    ASJC Scopus subject areas

    • Physics and Astronomy(all)

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