Heavy ion irradiation damage in Zr2AlC MAX phase

Research output: Contribution to journalArticle

Authors

Institutes & Expert groups

  • University of Cambridge
  • HZDR - Helmholtz,Zentrum Dresden, Rossendorf

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DOI

Abstract

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.

Details

Original languageEnglish
Pages (from-to)1-9
Number of pages9
JournalJournal of Nuclear Materials
Volume523
Early online date22 May 2019
DOIs
StatePublished - 22 May 2019

Keywords

  • MAX phases, ion irradiation

ID: 5194517