Effects of temperature and electron energy on the electron-irradiation- induced decomposition of sapphire

C. L. Chen, H. Furusho, H. Mori

    Research output: Contribution to journalArticlepeer-review

    7 Citations (Scopus)

    Abstract

    The effects of temperature and electron energy on the electron-irradiation- induced decomposition of sapphire have been investigated by in situ transmission electron microscopy (TEM). It was found that the decomposition rate of α-Al2O3 increased with increasing irradiation temperature and decreased with increasing acceleration voltage. The core-hole Auger decay process (K-F model), rather than knock-on displacement, is responsible for the decomposition of α-Al2O3 under electron irradiation.

    Original languageEnglish
    Pages (from-to)715-721
    Number of pages7
    JournalPhilosophical Magazine Letters
    Volume90
    Issue number10
    DOIs
    Publication statusPublished - 2010 Oct

    Keywords

    • alumina
    • electron irradiation
    • phase transformations
    • transmission electron microscopy

    ASJC Scopus subject areas

    • Condensed Matter Physics

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