Repository logo
 

Heavy ion irradiation damage in Zr2AlC MAX phase

Accepted version
Peer-reviewed

Type

Article

Change log

Authors

Qarra, HH 
Knowles, KM 
Vickers, ME 
Akhmadaliev, S 
Lambrinou, K 

Abstract

Zr2AlC MAX phase-based ceramic material with 33 wt.% ZrC has been irradiated with 22 MeV Au7+ ions between room temperature and 600ºC, 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 grazing incidence 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.

Description

Keywords

40 Engineering, 4016 Materials Engineering

Journal Title

Journal of Nuclear Materials

Conference Name

Journal ISSN

0022-3115
1873-4820

Volume Title

523

Publisher

Elsevier BV
Sponsorship
Engineering and Physical Sciences Research Council (EP/M018768/1)
EPSRC (1643725)
EPSRC (1643725)