Quasicrystals and nano-quasicrystals in annealed ZrAlNiCuAg metallic glasses

M. W. Chen, A. Inoue, T. Zhang, A. Sakai, T. Sakurai

    Research output: Contribution to journalConference article

    13 Citations (Scopus)

    Abstract

    Quasicrystals and nano-quasicrystals are observed in annealed Zr65Al7.5Ni10Cu12.5Ag5 and Zr65Al7.5Ni10Cu7.5Ag10 metallic glasses. Through systematic transmission electron microscopy (TEM) analyses, selected area electron diffraction (SAED) and nanobeam electron diffraction (NBED) patterns corresponding to five-, three- and twofold rotational symmetry are obtained, demonstrating that the precipitated phases in the first stage devitrification of the alloys are icosahedral quasicrystalline phases. The discovery of the quasicrystals directly reflects the intrinsic relationship between the Zr-based bulk metallic glasses and the icosahedral structure.

    Original languageEnglish
    Pages (from-to)493-498
    Number of pages6
    JournalIntermetallics
    Volume8
    Issue number5-6
    DOIs
    Publication statusPublished - 2000 Jan 1
    Event5th IUMRS International Conference on Advanced Materials - Symposium D: Intermetallic Compounds and Bulk Metallic Glasses - Beijing, China
    Duration: 1999 Jun 131999 Jun 18

    Keywords

    • B. Phase transformations
    • C. Nanocrystals
    • C. Rapid solidification processing
    • D. Microstructure
    • F. Electron microscopy transmission

    ASJC Scopus subject areas

    • Chemistry(all)
    • Mechanics of Materials
    • Mechanical Engineering
    • Metals and Alloys
    • Materials Chemistry

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