Formation of icosahedral quasicrystals in an annealed Zr65Al7.5Ni10Cu12.5Ag5 metallic glass

Mingwei Chen, A. Inoue, T. Zhang, A. Sakai, T. Sakurai

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    17 Citations (Scopus)

    Abstract

    The formation and thermal stability of an icosahedral quasicrystalline phase in an annealed Zr65Al7.5Ni10Cu12.5Ag5 metallic glass have been investigated by X-ray diffraction and transmission electron microscopy analyses. It was found that the quasicrystalline phase can precipitate from the glassy state and the supercooled liquid of the alloy over a wide range of annealing temperatures. After optimizing the heat-treatment conditions, the volume fraction of the quasicrystalline phase in the alloy can reach as high as about 80%. Investigation of the thermal stability of the quasicrystalline phase demonstrates that it is very stable when the annealing temperature is below the glass transformation temperature Tg of the alloy.

    Original languageEnglish
    Pages (from-to)263-269
    Number of pages7
    JournalPhilosophical Magazine Letters
    Volume80
    Issue number4
    DOIs
    Publication statusPublished - 2000 Apr 1

    ASJC Scopus subject areas

    • Condensed Matter Physics

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