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

Kei Nakayama, Junya Watanabe, Yasumasa Koyama

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Abstract

    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.

    Original languageEnglish
    Title of host publicationFrontiers in Materials Science, FMS 2015: Proceedings of the 2nd International Symposium on Frontiers in Materials Science
    PublisherAmerican Institute of Physics Inc.
    Volume1763
    ISBN (Electronic)9780735414211
    DOIs
    Publication statusPublished - 2016 Aug 26
    Event2nd International Symposium on Frontiers in Materials Science, FMS 2015 - Tokyo, Japan
    Duration: 2015 Nov 192015 Nov 21

    Other

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

    Fingerprint

    inversions
    transmission electron microscopy

    ASJC Scopus subject areas

    • Physics and Astronomy(all)

    Cite this

    Nakayama, K., Watanabe, J., & Koyama, Y. (2016). Orientation relationship between the T structure and the icosahedral quasicrystal in the Zn-Mg-Al alloy system. In Frontiers in Materials Science, FMS 2015: Proceedings of the 2nd International Symposium on Frontiers in Materials Science (Vol. 1763). [050001] American Institute of Physics Inc.. https://doi.org/10.1063/1.4961354

    Orientation relationship between the T structure and the icosahedral quasicrystal in the Zn-Mg-Al alloy system. / Nakayama, Kei; Watanabe, Junya; Koyama, Yasumasa.

    Frontiers in Materials Science, FMS 2015: Proceedings of the 2nd International Symposium on Frontiers in Materials Science. Vol. 1763 American Institute of Physics Inc., 2016. 050001.

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Nakayama, K, Watanabe, J & Koyama, Y 2016, Orientation relationship between the T structure and the icosahedral quasicrystal in the Zn-Mg-Al alloy system. in Frontiers in Materials Science, FMS 2015: Proceedings of the 2nd International Symposium on Frontiers in Materials Science. vol. 1763, 050001, American Institute of Physics Inc., 2nd International Symposium on Frontiers in Materials Science, FMS 2015, Tokyo, Japan, 15/11/19. https://doi.org/10.1063/1.4961354
    Nakayama K, Watanabe J, Koyama Y. Orientation relationship between the T structure and the icosahedral quasicrystal in the Zn-Mg-Al alloy system. In Frontiers in Materials Science, FMS 2015: Proceedings of the 2nd International Symposium on Frontiers in Materials Science. Vol. 1763. American Institute of Physics Inc. 2016. 050001 https://doi.org/10.1063/1.4961354
    Nakayama, Kei ; Watanabe, Junya ; Koyama, Yasumasa. / Orientation relationship between the T structure and the icosahedral quasicrystal in the Zn-Mg-Al alloy system. Frontiers in Materials Science, FMS 2015: Proceedings of the 2nd International Symposium on Frontiers in Materials Science. Vol. 1763 American Institute of Physics Inc., 2016.
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