4D electron tomography of dislocations undergoing electron irradiation

• DOI: 10.5802/crphys.80
• Publication Date: 2021-06-29T12:40:51Z
• Authors: Alexandre Mussi; Philippe Carrez; Karine Gouriet; Benoit Hue; Patrick Cordier
• Keywords: Climb; Electron beam processing

Imaging dislocation microstructures in 3D and monitoring their interactions over time is a major challenge. In this study, we show that enhancing the contrast of lines prior to reconstruction, allows optimize an acquisition phase with fewer images thus follow evolution microstructure time. We illustrate new possibility by studying first stages formation helical dislocations MgO under electron irradiation. highlight role segment mobility on initiation climb reveal existence preferential mixed planes.