Ultra Fast Tomography: New Developments for 4D Studies in Material Science

摘要

X-ray tomography has become a widely used 3D characterization technique in materials science using either laboratory tomographs or large X-ray facilities. The two main improvements in the last decade are the decrease of the spatial resolution down to tens of nanometers and also the decrease in acquisition time of a complete scan down to 1 second with 2μm spatial resolution. The aim of this presentation is to focus on the second point. We will present the technical problems arising due to ultra fast acquisition (development of specific sample environment) and its application in material science. We will show, that thanks to ultra fast tomography, it is now possible to investigate material science problems in 4D (crack propagation in metals and high temperature deformation).