The files contain 3D reconstructed X-ray CT datasets of binder jet printed samples using a metal powder. The samples were printed in different locations within the powder bed, and with different powder spreading speeds. Each sample set consists of a large field of view scan (0.4X objective), and three high-resolution ROI scans of zones printed a different powder spreading speeds.

There are three samples printed at the front (F) of the powder bed, three in the middle (M) and three at the back (B). 

     |------------------|
     | F3     M3     B3 |
     |                  |
===> | F2     M2     B2 |
     |                  |
     | F1     M1     B1 |
     |------------------| 

Each sample has three zones of different powder spreading speed: 150mm/s at the bottom, 100mm/s in the midlle, and 50mm/s at the top.

The full details of the manufacturing process, and the image acquisition and analysis are described in our publication "Micro-X-Ray-CT for Analysis of Particle Size Segregation during Powder Spreading in Binder Jet Printing" (J.Behnsen, J. Roberts, O. Rogan, J. McArdle, K. Black).

The data was collected with the Zeiss Xradia Versa 620 instrument, using the 4X objective with a detector binning of 2 and and exposure time of 2.5s per projection. The source energy settings were 80kV and 10W, and the LE3 beam filter was inserted.
The scan compromised of 1601 projection images over 360 degrees. The data was reconstructed with Zeiss Scout-and-Scan Reconstructor 16.7, with DeepRecon image improvement to reduce noise.

The file format is the original Zeiss file format, which can be read with dedicated image analysis software, such as Dragonfly (Comet-ORS), Avizo (Thermo-Fisher) or VGStudio. An open-source reader for ImageJ/Fiji from Brian Metscher is available on Zenodo: https://doi.org/10.5281/zenodo.10580258


For questions, please contact: julia.behnsen@liverpool.ac.uk