Project B4 will be realigned during the second funding phase to introduce the possibilities of the high-resolution X-ray microscope and to use it for a cross-scale investigation of mechanical size effects. The project focuses on the new X-ray microscope Zeiss Xradia Ultra 810, which complements the already established tomography techniques in CENEM (360 ° ET, 3D-FIB, APT) across scales. The device currently has the highest spatial resolution of a laboratory device (