Heavy ion irradiation damage in Zr2AlC MAX phase

Konstantza Lambrinou, H.H. Al-Qarra, Kevin Knowles, Mary E. Vickers, Shavkat Zh. Akhmadaliev

    Research outputpeer-review


    Zr2AlC MAX phase-based ceramic material with 33 wt% ZrC has been irradiated with 22 MeV Au7þ ions between room temperature and 600 C, achieving a maximum nominal midrange dose of 3.5 displacements per atom. The response of the material to irradiation has been studied using scanning electron microscopy, transmission electron microscopy and X-ray diffraction. Under room temperature irradiation, the ions caused a partial amorphisation of the MAX phase. At high temperatures, irradiated Zr2AlC remained crystalline, but developed an increased density of dislocations and stacking faults in the (0001) basal planes. The irradiated material also exhibited a temperature-dependent microcracking phenomenon similar to that previously reported in other MAX phase materials.
    Original languageEnglish
    Pages (from-to)1-9
    Number of pages9
    JournalJournal of Nuclear Materials
    Early online date22 May 2019
    StatePublished - 22 May 2019

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