Modulated structure in al65cu20fe15-xmnx alloys, studied by transmission electron microscopy

Chikai Sato, Tomoyuki Yokota, Katsuhiko Sato, Yasumasa Koyama

    Research output: Contribution to journalArticle

    Abstract

    Features of crystal structures of AlgsGoFexMnx alloys have been investigated by transmission electron microscopy. Electron diffraction patterns obtained experimentally show that some alloys exhibit similar diffraction patterns to those of the decagonal quasicrystal, in addition to those taken from the icosahedral quasicrystal as well as the AMn and AlFe crystalline approximants. That is, there are both diffraction patterns showing a crystal period of 1. 2 nm along one direction and a pseudo-tenfold one. with an electron incidence parallel toit. From high resolution images taken in the present works, it was also found that these patterns originate from a singlestate region. These results clearly imply that a structure characterized by these patterns can be identified as a two-dimensional modulated structure, which should be distinct from not only the icosahedral and decagonal quasicrystals but also the crystalline approximants.

    Original languageEnglish
    Pages (from-to)1214-1218
    Number of pages5
    Journalmaterials transactions, jim
    Volume37
    Issue number5
    Publication statusPublished - 1996

    Fingerprint

    Quasicrystals
    Diffraction patterns
    diffraction patterns
    Transmission electron microscopy
    transmission electron microscopy
    Crystalline materials
    Image resolution
    Electron diffraction
    electron diffraction
    incidence
    Crystal structure
    Crystals
    crystal structure
    Electrons
    high resolution
    crystals
    electrons

    Keywords

    • Alcufemn alloys
    • Pseudo-tenfold symmetry
    • Transmission electron microscopy

    ASJC Scopus subject areas

    • Engineering(all)

    Cite this

    Modulated structure in al65cu20fe15-xmnx alloys, studied by transmission electron microscopy. / Sato, Chikai; Yokota, Tomoyuki; Sato, Katsuhiko; Koyama, Yasumasa.

    In: materials transactions, jim, Vol. 37, No. 5, 1996, p. 1214-1218.

    Research output: Contribution to journalArticle

    Sato, Chikai ; Yokota, Tomoyuki ; Sato, Katsuhiko ; Koyama, Yasumasa. / Modulated structure in al65cu20fe15-xmnx alloys, studied by transmission electron microscopy. In: materials transactions, jim. 1996 ; Vol. 37, No. 5. pp. 1214-1218.
    @article{a18bb0365bbb49f08b0186ee6057a3ac,
    title = "Modulated structure in al65cu20fe15-xmnx alloys, studied by transmission electron microscopy",
    abstract = "Features of crystal structures of AlgsGoFexMnx alloys have been investigated by transmission electron microscopy. Electron diffraction patterns obtained experimentally show that some alloys exhibit similar diffraction patterns to those of the decagonal quasicrystal, in addition to those taken from the icosahedral quasicrystal as well as the AMn and AlFe crystalline approximants. That is, there are both diffraction patterns showing a crystal period of 1. 2 nm along one direction and a pseudo-tenfold one. with an electron incidence parallel toit. From high resolution images taken in the present works, it was also found that these patterns originate from a singlestate region. These results clearly imply that a structure characterized by these patterns can be identified as a two-dimensional modulated structure, which should be distinct from not only the icosahedral and decagonal quasicrystals but also the crystalline approximants.",
    keywords = "Alcufemn alloys, Pseudo-tenfold symmetry, Transmission electron microscopy",
    author = "Chikai Sato and Tomoyuki Yokota and Katsuhiko Sato and Yasumasa Koyama",
    year = "1996",
    language = "English",
    volume = "37",
    pages = "1214--1218",
    journal = "Materials Transactions",
    issn = "1345-9678",
    publisher = "Japan Institute of Metals (JIM)",
    number = "5",

    }

    TY - JOUR

    T1 - Modulated structure in al65cu20fe15-xmnx alloys, studied by transmission electron microscopy

    AU - Sato, Chikai

    AU - Yokota, Tomoyuki

    AU - Sato, Katsuhiko

    AU - Koyama, Yasumasa

    PY - 1996

    Y1 - 1996

    N2 - Features of crystal structures of AlgsGoFexMnx alloys have been investigated by transmission electron microscopy. Electron diffraction patterns obtained experimentally show that some alloys exhibit similar diffraction patterns to those of the decagonal quasicrystal, in addition to those taken from the icosahedral quasicrystal as well as the AMn and AlFe crystalline approximants. That is, there are both diffraction patterns showing a crystal period of 1. 2 nm along one direction and a pseudo-tenfold one. with an electron incidence parallel toit. From high resolution images taken in the present works, it was also found that these patterns originate from a singlestate region. These results clearly imply that a structure characterized by these patterns can be identified as a two-dimensional modulated structure, which should be distinct from not only the icosahedral and decagonal quasicrystals but also the crystalline approximants.

    AB - Features of crystal structures of AlgsGoFexMnx alloys have been investigated by transmission electron microscopy. Electron diffraction patterns obtained experimentally show that some alloys exhibit similar diffraction patterns to those of the decagonal quasicrystal, in addition to those taken from the icosahedral quasicrystal as well as the AMn and AlFe crystalline approximants. That is, there are both diffraction patterns showing a crystal period of 1. 2 nm along one direction and a pseudo-tenfold one. with an electron incidence parallel toit. From high resolution images taken in the present works, it was also found that these patterns originate from a singlestate region. These results clearly imply that a structure characterized by these patterns can be identified as a two-dimensional modulated structure, which should be distinct from not only the icosahedral and decagonal quasicrystals but also the crystalline approximants.

    KW - Alcufemn alloys

    KW - Pseudo-tenfold symmetry

    KW - Transmission electron microscopy

    UR - http://www.scopus.com/inward/record.url?scp=0030145315&partnerID=8YFLogxK

    UR - http://www.scopus.com/inward/citedby.url?scp=0030145315&partnerID=8YFLogxK

    M3 - Article

    AN - SCOPUS:0030145315

    VL - 37

    SP - 1214

    EP - 1218

    JO - Materials Transactions

    JF - Materials Transactions

    SN - 1345-9678

    IS - 5

    ER -