Production of single decagonal quasicrystal in Al-Co-Cu system

Junqing Guo, Eiji Abe, Taku J. Sato, An Pang Tsai

    Research output: Contribution to journalArticlepeer-review

    23 Citations (Scopus)


    An Al-Co-Cu vertical phase diagram along the 65 at% Al isopleth was constructed with the aim of growing a single decagonal quasicrystal. The decagonal quasicrystal was formed at 1000 °C via a peritectic reaction between a liquid and a cubic Al55(Co, Cu)45 phase. The decagonal quasicrystal crystallized as a primary phase for alloys with Co content less than 8.5 at% over a temperature range of 650 to 1000 °C. On the basis of the phase diagram, a single decagonal quasicrystal with a composition of Al66Co17Cu17 was grown from a starting alloy of Al65Co7.5Cu27.5 by the Bridgman method.

    Original languageEnglish
    Pages (from-to)L1049-L1051
    JournalJapanese Journal of Applied Physics, Part 2: Letters
    Issue number9 A/B
    Publication statusPublished - 1999 Sep 15

    ASJC Scopus subject areas

    • Engineering(all)
    • Physics and Astronomy (miscellaneous)
    • Physics and Astronomy(all)


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