3D microstructure

• Porosity, defects, cracks
• Grain size and shape
• Packing structure
• Mixing, segregation
   

Aggregates, coatings

• Coating thickness
• Microstructure, porosity
• Distribution of components/binder
• Particle/agglomerate breakage behavior

Micro Computed Tomography (Werth Messtechnik GmbH) with a dual X-ray tube system

• nano transmission tube (160 kV), minimum voxel size of 500 nm
• micro transmission tube (240 kV), minimum voxel size of 1.5 µm
• high-resolution large-area detector (400x400 mm/ 4000x4000 px)
   

In situ compression test cell (Deben)

• force and displacement measurement during uniaxial compression/tension of a sample (single particles, packing, layer, coating)
• CT imaging of the microstructure during stressing (consolidation, crack initiation and propagation)